i think the only reason they would make a R/S/E remake is because of the demanding of it and the cash they would make
and i read something on bulipedia about someone leaking information on gen 7 although because it was april first when i read it i think it might have been a prank
Probably to make money yeah xD.
Yes that was an April Fools joke.
I will make a timeline of events to express my ideas:
July 2014 - Airing of the 17th movie, teaser for next years movie. Hinting at Zygarde.
December 2014 - Movie 18 revealed, along with Zygarde starring.
January 2015 - Zygarde's new form(s) revealed. Said to debut in the movie.
February 2015 - Hoopa revealed. Appears in new movie and added to the movie title.
March 2015 - Pokemon Z/XZ/YZ revealed.
April 2015 - June 2015 - Just some news on Z.
June 2015 - Hoopa's new form revealed, plays a role in the movie.
July 2015 - Pokemon Z released.
January 2016 - Volcanion revealed, movie 19 announced.
May 2016 - R/S remakes announced. New Mega's said to appear in Movie 19.
July 2016 - Movie aired, teaser for next year. Old legendaries said to appear.
August 2016 - R/S remakes released.
2017 - Hinting at Gen VII. 'Strange Souvenir' Pokémon revealed, and stars in the upcoming movie.