The goalkeeper spent this season on loan with the League Two outfit.
Blackman, 23, impressed at Wycombe, making 50 appearances in all competitions.
“If that's an option (re-joining the side on loan) then definitely, I feel like I've got unfinished business here," said Blackman.
“So, if there's an option to come back here then I would certainly look into it.
“I'll go back to Chelsea now and sit down in the summer and see where I go from here."