Could HMS Victory return to sea?

Could HMS Victory ever be restored to a seagoing condition?

Not realistically; the ship is preserved for dockside survival, and building a replica would probably cost less than reversing that work.

Victory has been conserved around her present docked condition rather than maintained as a vessel ready for sea. Reversing that work would require extensive structural intervention and would put historic fabric at risk. A sailing restoration is therefore economically and practically implausible. A newly built replica would probably provide a seagoing Victory experience at lower cost and with less risk to the original ship.