>>150174747
it would have to take a MONUMENTAL effort for both the autobots and starscream himself. in any continuity starscream is guaranteed a degree of...difficulty, integrating with other robots.
if we utilize the TFA model of his personality, his main components are cowardice, sycophancy, egomania, and being a big fat liar. and being a competent female bot but that's besides the point TFP seems to prioritize himself over all others, as that is the way he has been conditioned to survive over the past X-million years. suck up to the most powerful thing and don't stick your neck out for anybody else.
the autobots would have to reeeaaaallllyyy give him enough benefit of the doubt so he wouldn't feel like a prisoner/powerless, but keep enough of an eye on him to make sure he doesn't backstab them, which is a very real possibility. it would take a level of mistreatment from the decepticons so abhorrent, so intolerable, that staying with these hig-and-mighty goody-goody autobots would be preferable to him.
i don't know how doable that is in Prime, but i think it could be pulled off in the future...