I would say it will still be comboable, cause its pretty much a good way to get high damaging combos. Then again it would be very risky to do it on wake up or if said combo drops, and it's risky of course due to fatal recovery.
My guess on his health... It's probably the same as Yuuki Terumi from BBCP(Which was 10,500) and watching PSC Adachi Episode he has a lot of supers (I think?).
Still need to get my JPN copy... Or I could gameshare it... Hey, Does Anyone want to gamesh- "slap" Oh? is that aganist the rules to ask someone that.. My Bad Sorry.
Also that Shadow boxart looks F**king Sexy... And also scary... NOT!
Here's the link if anyone missed it https://pbs.twimg.com/media/Bv4ED2hCIAAPyta.png
Do you mean pre-ordering the digital copy and getting Adachi,Marie and Margaret, for free? I don't think you can for Marie/Margaret... But I don't know about Adachi tho, I think it only works for Physical copy's.