My guess is that the 10 Ly limit is highly provisional and very, very likely to be enlarged somewhat. If their intent is for players to create remote "mini-bubbles", a chain of colonized systems advancing at 10 Ly per week is absolutely not going to be even close to enough. It would take literally years to reach any significant distance. Plus, of course, there are many gaps that absolutely can't be hopped with a jump range of just 10 Ly.
Of course significantly increasing that limit could also have its own problems. My guess is that they might increase it somewhat, plus also add some other way of advancing those chains a bit faster than once per week.