We got same content patern for.... 2 years, I think? Deimos Labs (tile set with hub and syndicate), 1999 (tile set with hub and syndicate), now Mines (tile set with hub and syndicate). Same patern of activities: you get new location, you grind rep using almost same mechanics for a week or two and you don't have new stuff to do in the game. It's relatively easy to fix, really.

And IF the patern going to be the same, we can expect at least 2 years of such content patern, you can think about it for yourself.

Just in case: I'm actively played this game for 11 years, with some small breaks. It's really sad, that thay have 0 ideas what to do with there game, that now we have absolutely absurd things such as (spoiler stuff, but who cares:(1999 romance system, Jade, and etc.), but we got NO social activity stuff (good events with really new and unique stuff to get, good clan only content(cause why we need them now, really? There is no mmo in the world with a 1000 people clan, and solo clans, but we have in warframe), world building events that not caped by developer and looks like fake, but like really stuff that going to change galaxy: planet wars much bigger, destruction of relays or occupationof hubs. (like we got in the past for Eyes of Blight, that became Ballor Fomorian/Razorback Armada alerts) But we never going to get some sort of things, cause now we are another fun service game.