Korshkov is waiver exempt so it’s more likely they keep a Timashov or Agostino over Korshkov.
They want to be a close to the Cap as possible on day 1, put players on LTIR and then revamp the roster. It wouldn't surprise me if players are put on waivers who are immediately brought back up (assuming unclaimed) and if players are kept up just for initial cap implications and then sent down immediately.
For instance assuming :
F(10) - Johnsson, Matthews, Nylander, Kapanen, Tavares, Marner, Kerfoot, Moore, Goat, Spezza
D(5) - Rielly, Muzzin, Barrie, Ceci, Marincin
G(2) - Freddie and Hutch
(plus Kessel money)
The final 6 (for cap implications) could be:
Timashov, Korsh, Mik, Lilly, Petan and Wilson (gets them to within $2857 of the cap)
Waivers: Shore, Ago, Gravel, Holl
Sent down: Sandin and Marchment
People would freak out for a couple hours, but then once they place the players on LTIR they would just make the proper adjustments.
If they want to ensure they don't lose, say Holl, on waivers - as he might be needed as the scratch when Dermott and Hyman are back then they could go:
Korsh, Mik, Sandin, Shore, Ago, Holl (gets them to within $3967 of the cap) - but then Timashov is placed on waivers.
I can't get to a 23 player roster that is both close to the cap and includes both Timashov and Holl - and I pretty much always need both Korsh and Mik to get real close to the cap in almost every scenario, even though that results in putting more players through waivers.