I must wonder if this move by WOTC will increase the sale of d20 products relating to spells and all things relating to spell casters?
If they prove to have kept an eye on balance, yeah.. probably will.
I mean, in some of the games out there currently being run, one can try the spells, feats, and prestige classes from books like Relics and Rituals, or from the Mongoose Arcane Books, for example.
I notice that in many of these books, the power of spells are greater at a comparable level to those given in the Player's Handbook.
(That spell in Relics and Rituals that will blast an entire country to smithereens - Denev's something - at 9th level, is pretty powerful ... )
That's part of the problem with allowing other parties to develop products for your game - they don't
have to balance anything against the core product. I could publish a book called Spells, Wow! in which there's a level 3 spell that just kills and soul-rends 1 target per level AND their immediate families. No save. Totally overpowered compared to other 3rd level spells, but as long as I observe the requirements of the GL, I can publish it. And once it's out there, people can use it.
The good thing about these books, is that there is an actual human being at the user-end of things. The DM can fully say, 'No, you cannot learn or cast Denev's Fury, I do not allow that spell in my game as it's unbalanced, and from a campaign set book for a campaign world we don't play in.' Humans are handy that way.
Perhaps WOTC is trying to backload the power of mages? That is, they are trying to grant more of the character's power when he reaches high level, and less at low level?
Why should they need to backload spellcasters further? They're already inherrantly backloaded as it is, simply by the nature of how spells scale with increased spell level. Again, they're not tweaking the class, they're rebalancing problematic facets of the system.
...(I have heard of Epic Feats being downgraded to normal Feats, so this would count as a change to the Epic Level Handbook... ) after all this is over?
With any luck, alot. A good number of the feats from the ELH are very poorly places as such and would actually fit quite well in normal levels of play. Manyshot, and the formerly Epic-now-Greater Weapon Focus and Specilization are good examples of such.
I wonder if they will revise the Epic Spells, how they are created, and how difficult it is to cast them compared to what they can accomplish?
Don't know, don't care. Frankly, at Epic levels - if you don't play a caster.. just give up. Epic spells are so terribly, horribly, stupidly over-the-top powerful compared to anything any other class can do as to make playing a non-caster in an epic game nigh, if not totally, pointless. Sure, that epic fighter can whirlwind attack as a standard action against everyone he threatens, rather than just 5' away, and he counts as wielding a Holy weapon reguardless of the item's actual enchantment... but the wizard just called down 20 Great Wyrm Red Dragons which follow his orders, and then cast a 200d6 fireball as a quickened spell.
Who cares if they change how epic spells are handled - it's not like they're remotely balanced in reguard to the rest of the game anyway.
I do not remember where, unfortunately.
Therefore I cannot back that up with any proof.
As mentioned above: Greater (formerly Epic) Weapon Focus/Specialization, and Manyshot used to be epic feats and will be instead normal feats with the 3.5e revision.