endgame is a term that came from chess, and it means the last few moves before you finish your opponent off, so for a few of you this might be endgame, subs = ragequit, game finished. but anyway those that say this is not endgame because we have a levelcap to come and a lot more content on the way are quite right

any way don't take my word for it this is what oxford dictionary had to say on the matter

noun
the final stage of a game such as chess or bridge , when few pieces or cards remain:
the game was adjourned after 41 moves in a rook and pawn endgame
figurative
Clinton went into the 1992 endgame with a lead in more states than Carter in 1976

so not at endgame coz all the pieces have not been put on the board yet :P