Question would be "how far does it go". It all depends on how successful it is, and how time flies. Like, will each season end on a cliffhanger or have time pass in-between? If time passes normally, a whole season can take place within a couple weeks (or 24hrs lol). Another question is "when does it pick up?" A few weeks after the banishment or a few years? If it's a strong translation, itd determine what kind of stories we get. Gambit left nola between 17 and 19. He didn't encounter Storm until he was in his late 20s ( I always figured Gambit to be about Bobby's age or a tad bit older, but younger than Cyclops, Jean, Angel, and Beast). So there are a few stories that depends heavily on how old Gambit is;
Paris occurred before his banishment
The massacre was right after he left NOLA
His time doing merc jobs was after he gained better control
There's tons of stories to write to fill in the gaps. I think the massacre would make a great 3 parter to end on a cliffhanger. Paris would be cool as a single episode flashback. Maybe a story he's telling to someone to distract them...
Let's say Agent Angela (White Tiger) and he arrives together. She's trying to apprehend him and they are attacked by assassin's. Angela is mortally wounded. In the fight Gambit mistakenly collapses the side of a building on them. Shes in pain, maybe bleeding out and suffering from a head wound. To keep her awake he tells her about the time he spent in Paris. The story takes up most of the episode but by the end they are rescued and Angela, who was struggling with her attraction to him and his charm is now resolved to take him down. The story showing him for what he is (in her eyes). She could be out of the show for a few episodes giving time for Gambit to get mixed up with Sinister. The season finale can be what I described earlier, the end of Gambit taking Marauders on and trying to save the Morlocks. Angela stumbles in and gets involved, again changing her perception of him. Plus you know, 2 or 3 episodes of brawling. Maybe a good 1st season cap?