We I think it was more the whole stealing of the Enterprise bit that effected Chekov. While he was technically the commanding officer of Reliant ofter the death of Terrell, Chekov was subbing for Mr Spock's science station after picking up what was left of Reliant's crew. While some of the cadets had been reassigned, I would think that the remaining crew on Enterprise that brought her into Spacedock was Reliant's crew. After putting into port, the ship was stood down with her crew not yet reassigned (aside from Mr. Scott who was needed at once on Excelsior). Chekov even asked if they would get another ship, even though it is not clear that the Enterprise's bridge crew were even suppose to be assigned to Enterprise following the Training Crews.
Chekov, without his ship and with the death of Captain Spock, might have hoped for consideration by Admiral Kirk to get a posting on Enterprise as either its new XO or even Captain. Enterprise, if she was only a training ship, would be fine if not very prestigious a command. If she was just being used as a training ship to get a new batch of cadets ready to run her, than Starfleet taking her off the line would seen odd despite her damaged state.
Following the destruction of Enterprise, Chekov is assigned to the new Enterprise in his old Navigator's station, but seems to be the ship's new Second Officer under Captain's Kirk and Spock. Captain Scott seems to have removed himself from the command chain and Sulu is still waiting for Excelsior to be commissioned to get his own captian's chair. No telling how long he remained on Enterprise following TFF, or his he transfered to another ship as XO while he waited for Excelsior.
Chekov, without his ship and with the death of Captain Spock, might have hoped for consideration by Admiral Kirk to get a posting on Enterprise as either its new XO or even Captain. Enterprise, if she was only a training ship, would be fine if not very prestigious a command. If she was just being used as a training ship to get a new batch of cadets ready to run her, than Starfleet taking her off the line would seen odd despite her damaged state.
Following the destruction of Enterprise, Chekov is assigned to the new Enterprise in his old Navigator's station, but seems to be the ship's new Second Officer under Captain's Kirk and Spock. Captain Scott seems to have removed himself from the command chain and Sulu is still waiting for Excelsior to be commissioned to get his own captian's chair. No telling how long he remained on Enterprise following TFF, or his he transfered to another ship as XO while he waited for Excelsior.