Last night I got to participate in a 5e play test. It consisted of creating characters and a battle with a troll and some goblins. We'd entered a dungeon, but didn't get too far into it.
I won't go into too much detail other than many of us have seen these rules before. They lean more toward older editions than 4e. There is a cool rule about magical healing. Monsters have low hit points, but do a lot of damage. And we had a good time. I still need to fill out my questionnaire which is what I like least and best about my experience and if I had any questions about the rules. I'll fill it out tonight.
I am hoping this outreach towards old school guys and the reprints is a step toward a friendlier relationship with everyone. That they realize its not just their rules that needed to change, but their attitude. I'll be adding that to my feedback email also.