Honestly, he may given up his crush on princess twilight but I doubt she would start a relationship with sunset again. I don’t find the chemistry of both flashshimmer and timberlight unique as I do for sciflash/flashlight. Besides, sunset is a pony too and the chemistry between human and pony is unique but more importantly it’s confusing. It would b like messing up both universes and not having a counterpart in one universe while ure living in ure own. Plus, if, no, when human sunset comes into play, she won’t harbinge any feelings for flash the same sci twi didn’t when she first met flash as she is not the sunset shimmer we know and love. We barely see flash and sunset together and on a sunset shimmer mexican interview, she said there was one boy in mind but she said it’s not flash as she clearly stated in the interview as well. I think she’s only trying to cheer flash up whenever he’s upset and again doesn’t harbinge any feelings for flash at all and if they did, we wouldn’t have seen the flashlight ship in the first movie in the first place. As for timberlight, it is considered one of the worst ships ever created in the series. The chemistry in timberlight is absolutely terrible. The problem I have with it is that waifu stealing idiot timber spruce stealing sci twi away from flash even tho it’s not the same twilight flash knows and loves, but nonetheless the timberlight relationship is too forced, annoying and displeasing for others and I who despise this ship a lot. Nobody will ever like this ship and sooner than later this ship will die. As for sciflash/flashlight, the chemistry is unique and mature because unlike timber, flash would not just brush off any concerns for others and ignore the situation nor hide behind a girl and use her as a shield when his life as well as others who r vulnerable r in danger. He helped clear twilights name and doesn’t put others at risk when their life including others r in danger, nor win a girls affection by talking about himself on how great he or handsome he is. He wins her affection by reading their minds and their heart by becoming a true mature gentleman. That’s how flash and twilight relationship became so unique and why they r made for each other as well as for counterparts because their relationship is mature and fair. And after seeing ‘unsolved selfie mysteries’ and one of the leak shorts back in December, I have a feeling sci twi will break up with timber and start something with flash and the same could b said for their pony counterparts whether it’s in a novel, storybook, comic, between or at the end of equestria girls series or season 9 before mlp g4 ends in all of them. To make matters better, we have a new equestria girls novel with sci twi partnering with a charming crystal prep boy named rising star and flash will b involved. I don’t know what will happen at the end but I’m glad flash is in sci twi story. Hate to break it to u but considering what many fans have said besides me whether it’s here, equestriadaily, Twitter or anywhere else, i think the possibility of sunset and flash getting back together is a downer and both timber and twilight breaking up is a high possibility.