To state the obvious, this is an unreleased product and all materials and footage dates back to at least January.
http://www.rcgroups.com/forums/showthread.php?t=2066943
Since then Husban has said nothing and done nothing with regard to information about the X4 Pro. Their tech support works [lacks] exactly the same way. If you're looking for a Phantom killer with great support from a great company, well, keep looking because Husban is not the knight in shining armor you may be wishing they were. This is a completely untested platform with for all we know, a completely proprietary, non-extensible FPV system. That's great if you don't mind staring at a 3" screen, but bad if you want to use a tablet, glasses, or anything else that's actually useable in the field. Point is, you don't know, I don't know and they probably don't even know how this thing will pan out. Selling your Phantom V+ for this? Really?