Yes, I am looking forward to using less apps!
I do think that there will still be a cap on the amount of crypto's you can use because of the ledger device's limits itself. So you won't be able to put more different types on there, but the ones that are there you can all access through the same app. At least that's what I think they will do because it would be the easiest implementation. I do wish they'd go bigger and make it so you do't have to uninstall apps on the device itself, but it may be a long shot to hope for that :(