I hope nobody goes. It's an excuse for people who are poorly informed to throw a tantrum about things not going exactly how they want despite the fact they are unable to offer any realistic alternatives themselves. People who are incredibly privileged to live in such an ordered, liberal society but are too spoiled to see it.
Then the majority will get involved in smashing things, fighting the police (who are suffering harder cuts and reductions than any other public sector employees by far) and showing off.
Then the next day people will pretend it's a minority who give the moral majority a bad name, but when they go to bed at night they'll all know that they're just as bad as all the other childish idiots, they're just lucky they didn't get caught.
Ironically, if people behaved like grown ups, then the money saved on boarding up prior to the 'march', the money saved policing the 'march', the money saved on cleaning up after it, the money saved on the hundreds of thousands of pounds worth of repairs required following the 'march' and the money wasted prosecuting and on precious few occasions imprisoning the thugs and petty vandals, could be better spent bolstering our economy.
I'm not against having a real march as a form of protest, but this country is incapable of doing so without going too far. People self indulgently think that the way they behave is 'right' simply because they aren't getting their own way.