To answer the original post, we don't have plans to split frequencies. This (like all 450 devices) is a TDD device, and utilizes the same channel for uplink and downlink.
Regarding roadmaps, we do periodic webinars on this topic, and there will be additional ones coming in the fall... look to sign up for these, and you can always find the recordings here in the forum. You can always come to the 450 forum and use the search term "webinar" to get a good list of them...