In my opinion, the worst thing they could have done was start making sequels and 'connections' between the different numbered games in the series. That's why I wish X-2 never existed. Not only did it start the sequel-prequel-spin-off compilation crap, it also introduced the concept of the FFs being connected, which in all honesty makes zero sense. I have tried to make sense of the FFX-FFVII "link" and for it to even start making sense they would have to butcher the stories just as they did with the VII compilation. Will they just leave poor Cloud and co. alone? I think not.
"OMG Yuna could be Aerith's great-great-great-great-great grandmother!!!"
.....No.