Quick question: what is your IQ?
Alts are not end game.
end/end/
Noun:
A final part of something, esp. a period of time, an activity, or a story.
Verb:
Come or bring to a final point; finish.
By definition, anything 'alt' related is not end game. It is the beginning of the game.
To the OP: End game in the sense of character progression currently consists of HM FP's, PvP and operations. HM FP's drop off once you are geared from operations so that leaves 2 things to do.
Operation content is easily cleared in mediocre gear and once you end up clearing HM/NM content and are fully geared the only real competition in the game is PvP. Hopefully 1.2 operation content is substantially harder and will require skill to clear.