the next season takes your last seasons ranking into effect when you do your 10 placement games. so if you end at gold 5 this year....if you do fairly well in your placements in season 6, youll get placed somewhere pretty close to that. usually anywhere from silver 2 (maybe silver 3) to gold 5. its kinda rare, in my experience, to start off next season where you left off the past season. usually you get dropped a division or 2 and have to climb back up, just so you prove you originally deserved that ranking in the first place. and as for the free wins, yes you get them. and as to how many, it depends on how many times you get into gold and then drop back out.