So I'll lead with the fact that this is great news - he's been tremendous, and for someone with so little experience, a lot of facets of his game seem very well-honed, particular some areas like communication, decision-making and positioning where young keepers often struggle.
But I have some sympathy for JLB's position because there are aspects of his game that still need improvement. Kicking and distribution is the most obvious, but his handling is not always as clean as you would like it to be, and I'm still nervous when he comes to punch a cross/high ball - needs to be getting more distance on those.
All in all, though, we've certainly seen enough that we should be excited to see him between the sticks for the next three years, where hopefully he will grow into a major, major asset.