Would it be worth it to travel to the UK summer 2022?

I'd be more afraid of a positive positive.

There is no way to know what the requirements will be next summer.

If you've got your heart set on coming in the Summer, I'd book now as tickets are probably as cheap as they will ever be.
Who knows what will happen in the future, but be sure you find an airline with flexible refund/change rules.
I've learned if you follow the restrictions day-by-day, week-by-week, your travel plans will become endlessly complicated.
Prepare for the worst, hope for the best.

This is a question that only you can answer for yourself. As others have said, things will probably change between now and then. However, If you have a negative test to travel to the UK, it seems likely you will still have a negative test a day later when you arrive. I find this double testing a bit unusual, but I respect the right of the UK to set health policies and expect visitors to follow them.

We’ve already booked for Britain this April, to replace the trip that got postponed this year. We’re hoping for the current testing requirements and isolating downtime. A lot can happen in the next 5 months, and we’re currently counting on things improving.

The odds are definitely in your (and our) favor, with us all properly vaccinated and boosted. We’ll see if it’s still possible to go in April, but it’s too soon to call things off again. If you’re planning a summer trip, you have even more time than my husband and I for things to sort out.

You need a scorecard to keep up with the changes. As others have pointed out, its virtually impossible to tell what the rules will be in the summer.

I would not be worried of a false positive. You'll have to have a negative test to get in the country before you fly (as of right now). I suspect the day two test is just to make sure you didnt catch it on the plane - which, assuming everyone was tested before they got on, should be a non-issue.

As to would/should you go - that is something only you can decide. We all have our own comfort level of "travel angst" we are willing to deal with. If the summer is when you want to head to Britain, I wouldnt give up hope just yet. Do your best to watch for the changes, and closer to the time, if all is still a go and you have questions - just shout.

Good luck!

At this point, it seems like Covid will be a thing indefinitely. My husband has business trips to England in Feb and May and we have a Rabbies tour booked for the May trip. I went to Europe 3 times in 2019 and was scheduled to go to England in Mar 2020. At some point you just have to wade into the water. I'm vaccinated with booster and I'm not going to spend the rest of my life sitting at home hoping that things return to our previous normal. And where I live, sitting at home can get you tornadoed-an EF3 hit my neighborhood 1/2 mile from my house this past March. Our new normal is to be aware that life has always been uncertain.

I’d be more concerned with airfare increases if you wait too long to book. The day (0-)2 PCR test is a minor inconvenience in the grand scheme of things. Take the test immediately upon arrival and the result will be returned in about a day. One recent traveler’s results came back in 26 hours. That’s enough time to get a good nights sleep and get over jet lag. Covid isn’t going away anytime soon and I’m not getting any younger.

Put me in the group that believes this isn’t going away and this will be the new normal. We booked our tickets to Sicily for April 20, insurance purchased and paid for.

I live in England and have been to Wales and Scotland this year. Mask wearing is far more lax in England compared to the other home nations. I have been happy to go to rural parts in my own car and only eat out at lunchtimes in the summer when we could sit outside or indoor places where the tables are well spaced.

I wouldn’t travel by public transport or visit busy English cities or eat indoors where tables aren’t well spaced, but that’s my comfort level. Yes I am double jabbed and boosted. I know numerous people that are also double jabbed and have still caught Covid and been quite ill with it - one in ICU for days.

Testing is the way round it but the procedures will change numerous times before your planned visit. You will need to be prepared to be flexible and for plans to change at short notice. Things are usually better in the summer when the weather is better. I would be concerned about a trip earlier in the year. If you aren’t prepared to self isolate or extend your trip if you were to test positive, then it’s not the time for you to be travelling, unfortunately.

Are you interested in any other countries besides UK?

I love UK but also love France which has been pretty consistent on entry requirements although added the negative antigen test for entry in early Dec with the rise of Omicron variant. At this time you do not need a 2nd test after arrival so no quarantining unless for some reason you do a test and come out positive.

I'd considered adding UK on to a trip to France, Belgium and Netherlands in April but have cut that for now due to the 2nd day test and quarantining. Belgium and Netherlands is still up in the air as far as I am concerned but I will return to Paris.

"I find this double testing a bit unusual, but I respect the right of the UK to set health policies and expect visitors to follow them."
Two weeks ago, two KLM flights from South Africa (about 500 people in total) yielded 61 positive covid tests - this despite everybody supposedly testing negative within 48 hours of departure. This may be down to a statistical anomaly, but may well have something to do with supposedly being able to buy a convincing "negative PCR result" in South Africa for less than $30.

I am sure, with some searching, I could find similar "tests" in the UK. I've certainly seen reports of athletes in the US being banned for having false Covid documentation, and there have been reports of clinics in Florida prepared to sell false "vaccination certification".
Never underestimate the determination of "non believers" to travel and damn the consequences for other people.

With regard the original question, I have had to change plans for a small pre Christmas lab meetup of less than 10 people three times since Thursday - the chances of an accurate prediction for 6+ months ahead is impossible I'm afraid.