The 21-year-old moved to the DW Stadium on a season-long loan deal in August, but has been unable to claim regular first-team football under Roberto Martinez.
Sinclair has made one start and 17 substitute appearances in the Premier League for Latics, with four starts in cup competitions.
"I've had a frustrating season because I haven't really played as much as I would like," he said.
"But I think I've learned a lot off the field, because I haven't been on it much."
Sinclair was speaking at Stamford Park at a media event for the BT Paralympic World Cup, in which his brother Martin will represent Great Britain in the seven-a-side football competition for athletes with cerebral palsy.
But it is Stamford Bridge where his future will be determined.
Chelsea are on the verge of title success under Carlo Ancelotti, who has stated the Blues will rely more on their academy graduates next season.
Whether that includes Sinclair remains to be seen and the Bath-born winger will seek discussions with the Italian to determine his fate.
"Next season I'm just going to go back to Chelsea and see what happens," added the former England under-19 international, who will be a spectator as his parent club Chelsea look to seal the title with victory over Wigan on Sunday.
"I haven't really planned that far ahead.
"I just need to speak to the gaffer (Ancelotti) when I get back, see what happens and go from there."