I know that Pokemon anime exists for almost fifteen years, and many series or/and seasons spend.
It is impractical that this anime will never end, as the original Japanese voice actors ages, that voices will affect dubbing their characters for worst. I'm aware that forums will continue to exist even the anime ended due to popularity of the games and trading cards.
Since the Pokemon anime is in fifth generation, some reported that this anime will continue until it's twentieth generation, (i don't know the source, but I read it somewhere not on this forum), and each generation lasts for three to four years, (maybe, estimated from calculations of Advance and DP series), I wished that Best Wishes is the end, due to the words "Best Wishes" meaning literally as a farewell or good bye.
I'm aware that the characters will have to finish their goals. As the Best Wishes story progresses, the former main characters becomes hidden and obscure due to writers now concentrated only in Best Wishes.
Notes: I will edit this again somewhere between October to December 2013 after XY anime begins.