Yes, it's complicated. But, if the Canes reported offer is true (12.5-13 x 8) and Rantanen doesn't accept by the deadline, I think that would be a massive red flag and a slap in the face to Canes management. Sure, I agree that Rantanen was acquired due to his hefty playoff pedigree, but if he's not resigned and there is a renters market for him on deadline day... the Canes will have a tough decision to make. If the only return is a late 1st and a B prospect... then maybe they roll the dice. But if a team is willing to pay a 1st, 2nd, and a very nice young player to rent Rantanen... then Carolina must consider or they're derelict in their duty, imho.
Best case for the team and player is he gets hot, resigns in Carolina, and becomes a main offensive cog. But my Spidey sense is telling me it won't be so easy.