Power Source Books?

[MaelStorm]

Right but each core set will have different stuff in it. You won't be buying the initial PHB, DMG, and MM each year. Next year you'd be buying the PHB2, DMG2, and MM2, then the year after that, you'd be buying the PHB3, DMG3, and MM3. They already started doing that with 3.5 (they got up to 5 MMs, although they only did two PHBs and DMGs).

The only issue I have is that I can't really think of what they'll be putting into subsequent DMGs. The MMs will have new monsters, the PHBs will have new races/classes/spells/etc, but what will the new DMGs have? More advice? New traps? New example towns? New example NPCs? New magic items (this is more likely going to be covered by the Tome of Treasurers, and I won't be surprised if there will be more than one of these too)?

Yes, different power source every year, etc. This is what I think, too.

And for part 2 of your answer: I can't think they could release more than three DMG. If I recall at that annoucement there was a video presentation (for the 30 years of D&D) with gaming group searching in the 3E DMG for the grapple rules. It was the running gag.

Have WotC learned their lesson, I'm not sure!

 

[MaelStorm]

After reading the last post by Mike Mearl, I am sure it will be a book of maneuvers of unarmed/melee/ranged combat for characters that choose to take the martial power source. Either directly from your base class or through some tweak feature that gives you access to it.

There should be new maneuvers, new feats, and new talents.
New exotic weapons, that is a sure bet.
Possibly new skills.
New classes maybe.