The festivals will struggle to come back as they are now, because they depend on hundreds if not thousands of micro businesses to put them together - lighting, stage techs, stage hands etc. A huge number of these businesses are limited companies and in reality they're very small.
The government hasn't awarded any furlough or other help for people running such micro companies so they're all busy selling off their equipment to pay the bills.
Also most of them earn money not just from festivals but from gigs at venues, many of which will have gone bust over lockdown.
And also, many festivals can't afford to lose a years takings and risk going under.
Once the restrictions have relaxed enough to allow large gatherings again, those festival organisers who have survived may find their contact book of suppliers tells a sorry story as the industry will have been decimated by then.
Brexit is going to make it worse also, as the amount of visa red tape Europen bands will have to wade through to get here will put a lot of them off coming. No problem for large, well established bands. But for the thousands further down the tree, ot will be Similarly new / small UK bands will lose the opportunity to gain fans by touring in Europe as the red tape and added costs will make it not worth going.
Live music is worth £1.1bn to Uk economy with industry as a whole put at £5.2bn but you wouldn't think it. This government has been repeatedly told how Brexit and other policies will affect the music industry but they don't seem to give a shit.
Our cultural landscape is likely to get much poorer under this government (no change there then, more of the same).
People love festivals and being involved in putting them on, and I'm sure the industry will pull together to put some great events on. But there's no way it'll be the same without some government support for the industry, people can't survive on nothing.