You make good points, but I think the real issue we're going to keep coming back to is whether they are really changing what made people bored with comics in the first place. I remember there was an old episode of The Simpson's where Malibu Stacey (AKA Barbie) sales were down, so they added a hat and everyone went nuts buying her. It will be interesting to see how it all turns out. What long time readers are turned off, what new readers stick with it, and whether they go back to making the same mistakes, but in a brand new timeline.
You cant satisfy everyone and in the end, it will all depend on the stories and art , all the flash of the new direction will eventually go away like it did with the first crisis storyline from years back, and keeping the crisis story in mind, this is almost like that and readers kept reading .
ok this is a much more in your face series of changes to the characters but its the same idea of going in a different direction for the characters and premise .
yes this is the malibu doll with a new hat but some of these dolls/ comics have more then flashy new items added in , and that added greatness to these comics will keep this reboot going for a long while.
not to mention that this is a great way to keep the characters from becoming washed up heroes a la kingdom come, and this keeps them fresh.
i have no doubt that this is permanent and that sale will go higher now that they made it clear that they are full on digital on same day, and that same day thing is what will keep a lot of people to come back to these comics, since a great portion of people 1 -cant find any recent issues in stores near them 2-preffer to buy digitaly due to lower cost and that they are mostly always on their comp, iphones, laptops, and so on, its a digital world and dc is making sure that they are part of it and its a brilliant move.
so yes some will leave dc due to millions of different reasons, but the true fans will eventually find an issue that they want to keep reading and most all ready have and yes some series will be cancelled after a while, like for exp static shock... but its to be expected to happen and again thats why dc put out 52 different stories with different feels to them to attract different type of people, and who knows, static might bring in the younger kids in since it was previously a kid show so on and so forth.
right now its just too early to call whats going to happen since this is month 1 but something tells me that over 70%+ of the reboot will end up being a great success , we just need to keep on reading to see where it all goes.