Weekly Cap Token

[ItMe]

That way, anyone that did a break could come back and catch up their mate.

What are you thought about this ?

What would you need to "catch up" for?

If you're gonna run EXes your old gear will probably do (assuming your break wasn't too long).
If you're going into Savage you can do that with a crafted set.
If your iLVL is a little too low still, you can run some eden normal and get a quick boost.
If you're trying to gear up for Ultimate you should be playing and practicing with your team instead of taking an extended break.

So aside from the fact that you don't really need to catch up on Tome Gear, they can't make it too easy for people to catch up or why would people play through the segments when the cap is lower? If they can just take a break for a month and come back and be in the same place as the people who were playing, SQEX would be losing / risking a lot of sub money so they're really not gonna be all that compelled to do this.
Like... maybe raising the cap after the 7 week mark when people can get their tome weapon with tokens might make more sense, but not by the large increments you suggested.

Week 1: Cap at 450
Week 2: Cap at 900
Week 3: Cap at 1350

I also wonder what something like this would do to the amount of tomes each piece would cost. Some level of inflation would be involved, and that would lead to other issues.