Thanks for postig this playtest. I enjoyed reading it.
First level in first and second edition was partilucarly limited and the characters particularily frail. In third edition, first level characters got a bit more powerful and had a few more options. In fourth edition, first level characters will have even more hit points, healing and options.
For some players that will feel like a good change. For others it will feel like a bad change. I've had both types of players, some who hated the impotent feeling when starting at first level, and some who loved that stage and really built their connection to their character at that stage, fondly remembering their crazy exploits from the time they were barely competent to kill a house cat.
I remember in earlier editions, some groups liked to start at 0-level, with no special powers whatsoever, and build up to first level in a class. For those folks, the change of relatively powerful first level characters will be unwelcome. Perhaps all that is needed is an optional rule for 0-level characters with a weakened version of first level for each class, which a third party publisher could put out, and which such groups could use as an alternate starting place before moving onto first level. The optional 0-level characters could be given half normal hitpoints, only one instead of two at will class powers, and no daily class power. There you have it, rules for weaker 0-level characters to start out and get attached to before you get to 1st level.