Ok, so at long last the 5e playtest materials are finally available. I've given all the materials a cursory read.
At a glance this looks like a min-maxer's paradise. Bonuses are too abundant for my taste.
Also, HPs are way out of whack for me. It would be very hard to die in this edition given the HP and the death rules.
I really hate that the monster stat blocks don't have Hit Dice. I don't want all my baddies having exactly the same hit points, that's just gamey.
The stat blocks are cumbersome, as they felt the need to include ability scores for things like oozes and centipedes. Really?
Backgrounds and themes look redundant to me.
There are also stat discrepancies between the character sheets and the equipment list (this might just be me, but I don't think so).
How WotC would expect you to play an Old School style with this game I have no idea. It would have to be so heavily houseruled that you might as well play something else.
It still has feats, healing surges by another name, etc. that simply do not interest me one bit.
I'd play this as a one-off but it is too far removed from TSR D&D to be useful to me.