Is it safe stay in Brussels with all the violence in that area? We head there Dec 8!
There was a police action in a neighbourhood you're unlikely to visit.
I will be in Brussels briefly in January on my way to Brugge. I am not planning any changes. The neighborhood you refer to is outside the main tourist area.
Who knows? All public transport has been shut down today and the shops are now closing. It's not a place I would want to be right now, but by 8 December? Your guess is as good as mine. Personally, I would travel in Europe (I am from the UK), but not stay in major cities.
I agree with Jennifer that nobody can give accurate advise, but following sources like the Belgian news gives you more precise uptodate info: http://deredactie.be/cm/vrtnieuws.english to get an idea.
Given the Belgian government's current increase of the terror threat to #4, the highest level, for Brussels, I would wait until that comes down at least to #3. YMMV. Check European news sources - if you don't read French, the Guardian in the UK or France24 in English are good websites.
Have a look also at BBC.com and CBC.ca
Eurostar reports that anyone with tickets to Brussels through Monday Nov 23rd can delay their trip for 60 days free of charge.
Continue consulting their web page incase they continue making similar or more generous offers.
I'm supposed to be in Europe in a couple of weeks and my flight (back to the US) starts in Brussels. I'm currently planning to arrive in Vienna and head over to Munich before taking the train (already got the tickets) on Dec 12 to Brussels. Obviously that is still a few weeks off but I might try and call the airlines and see if I could return from somewhere else (Frankfurt or Munich) as a preventative measure (my flight is actually Brussels->LHR->ORD).
This is more "interesting" than I had hope. Hopefully things will calm down in a safe manner.
Thanks for all the information.