If they can magic up CMAT and Wunderhorse in addition to what's already been leaked I'd have to consider trying for a full weekend ticket when they go on sale.
I've done every one since 2007. only changes that I have really notices are - the smell of weed has gone , balloons of Noz were a thing that has mostly come and gone. It feels more crowded, people seem less kind, everyone seems only interested in making content as opposed to actually being in the moment and making memories. Avalon is a shadow of what it used to be, noone has a campfire anymore - that haze that used to be over the festival at dawn is hardly ever there anymore. A lot more glamping and more hospitallity people. Yes food and drink a little more expensive but thats life - it is everywhere else too. some stuff has gone some has moved and there are some new things its a constant (slow ) evolution there is more and better support for people with Mental health issues