yeah show was poor, not much to be excited about. i think this gen is largely over for exclusives. i expect every new studio to be going to the next xbox immediately, preparing for as strong a first year as possible when it launches holiday 2020.
obsidian aren't the studio they were ten years ago when they made New Vegas, but with a good budget they could be a great addition. will be interesting to see what kind of games they make. the type of games they have made recently review well but they aren't system sellers. hopefully they will make something more like NV, a full open world rpg. InXile I don't know much about, so can't say how big an addition they are.
InXile have been an ok AA studio but they've not really had big teams or budgets. They certainly have improved from what they were like maybe 8-10 years ago, they were a bit of a joke back then. So I would say they could be pretty good.