I'm really hoping that Banishers is 2DP and Sanctic Spearhead is 1DP so that I can run combined arms armies in a really fun way, and also because it's gonna make Dreadknights really good if the rules for both either remain unchanged or get buffed
I think that GW has the opportunity to do something cool for the Agents, and that's to let us use a detachment for the units when they're allied into another Imperium army. For example, let's say I'm playing a Militarum Tempestus army and I wanna throw in some Grey Knights and Ordo Malleus units to make a Daemonhunters force. If GW is cool, they could let me take Bridgehead Strike alongside the Ordo Malleus detachment (and maybe a third detachment depending on if Bridgehead Strike is 1 or 2 DP), and I could run an army where my allied units still get some buffs from their detachment while the rest of my army gets Orders and Bridgehead Strike buffs