Well, as for the Selects, I have all this material save maybe an alternate take, and I'm trying to save money, so I'm not going to be preordering or even buying them soon.
BUT I think it is exciting that this material is being reissued; it really deserves it and Mosaic is doing a great service by releasing them. The Amy material is going to be a surprise for many here. And the Pearson material may be an acquired taste, but it is some of the best stuff that Blue Note put out in their final years (of the original company) and I've always loved these sessions.
The Eldridge should be a great set. It's a lot of Roy in one whack, but savored slowly it should really satisfy. It's nice that they are reissuing these hard to find lps that haven't been on cd!