My comments about the new article...
Warlock's invocations
Rumor is that the class will get quite few of them, definitely lesser than a sorcerer's known spells, but castable at will. I seem to remember that the class has intermediate combat traits (BAB, HD) am I right? Also SLA don't suffer from ASF, so the warlock can cast in armor, mmm... Definitely too hard to say yet, this class could be anything from pathetic to outrageously powerful. In any case it's different from all other core classes, not just a mix of abilities, which is very good. Well, not really
completely different however... I just hope they have playtested it enough.
Prestige classes
We already heard about the revised Fatespinner. The Enlightened Monk (although I hate Monks) is at least an example that the book may be useful to others than arcane casters. The bardic PrCls are absolutely welcome, sounds like the first empowers the bardic music and the second the bardic spellcasting (let's hope there is some drawback here...).
Then there's the Suel arcanamach, "a warrior/spellcaster who can ignore all or part of the arcane spell failure", wow! Wait, you mean...
another one ???
New feats
Ok they reprinted many old metamagic ones, but I really wonder if they have changed anything or not. Cooperative Spell was IMHO a great idea but with weak usefulness in 3.0, I'm curious to see its revision.
Sudden feats are not of my appeal. That's because the entire process of making metamagic much easier for non-spontaneous casters isn't of my appeal in the first place. I can't say why but if these sudden feats require the base metamagic feat then I will be glad to accept them in my game, but not otherwise.
OTOH the part about draconic feats can be a good counterpart for sorcerers, to make up for the general trend of making metamagic just as easy for everyone else.
New Spells
Well almost all these are just revisions so nothing impressive yet.