LDC
On est tous des pangolins
I don't recognise this gap which omits e.g. the anti-war movement, the g8 in Scotland, the ayn, the g20 etc.
I did think at the early end it included much of the anti-war movement of 2002/2003 though. (When was the massive anti-war demo in London, as that felt like 'the end' of the movement to some extent.)
Anyway, it wasn't that I felt there wasn't things happening in that gap, but to me the G8 and the other things you mentioned were largely involving people already active, rather than a wave of 'new people'. (And also felt like 'the end' of the wave of large mobilizations of earlier years.)
Anecdotally from the people I chat to many involved in the ideological clashes were alluding to do date their involvement from 2010/11 student wave.
But like I said, more a feeling from personal interactions than absolute fact.