All the fanservice achieved from this fandom is actually more than Nintendo or other more beloved companies has reached levels of pure meta stories to the point where the fandom has become an inspiration and the reason why this franchise is relevant to this day. It would have been your typical girly cartoon and now, it has turned into something like Pokemon: jumping from generation into generation of ponies.
Thing is Gen 4 has actually become the most commercially and critically successful generation of ponies. It has the standards of the franchise, more than 30 of girly image turned into a mainstream show for everybody. No matter who you are, you can enjoy it as what it is and it doesn't feel inclusive to one range of ages.

It will influence gen 5 and all the related future plans for it because it will be looked as a golden era for profit,meaning that a toy commercial of a quality similar to non commercials shows,can achieve as much if not more success than all of those. When everything goes in context,has lore,a moral,ponies doing cute things,expanding the universe and different interactions between characters,seeing them evolve and becoming more relevant and real or relatable....that quality actually gives money. The reward for that good effort should be give. for caring about these things that make a franchise richer,even revitalising what previous generations couldn't or didn't want to care less about it