I just took a longer look at it and downloaded some of the previews. They are essentially creating a completely new game it seems to me. Of course that is also what the Immortals Handbook did in BECMI as well. Not really what I'm looking for, but I understand the appeal of creating something new.Saw that kickstarter. $35,000 seems really high. Also looks like it will be bloated being 250 pages. Makes me worry it will be complicated.
But haven't checked the preview. I might be converted.
I like the concept of phased monsters (I did the same thing in my 4e Epic Updates), but I don't think you have to go that route for epic monsters. I don't get why it seems they are capping ability scores at 25 it seams. Maybe these are "epic" ability scores?
Also, it looks like the initial book will only include 20 monsters. I'm planning on 150+ and I don't think it is enough to really run an epic campaign.
Finally, I don't really like the format of the monster stat blocks or the graphic design in general, that could change, but I doubt it.
All this to say, no thanks on this one - I'll pass.