I am planning on ordering the Expanded Psi-Handbook. Whether we switch over or not is open for debate. I haven't been keeping up on the changes, so I don't know what to expect yet. In Li's case, without Inertial Armor, he loses a lot of his flavor. So, there needs to be something that compensates adequately, or there has to be a replacement ability that you just can't live without, or something.
We'll figure it out.
Right now, my big ones are Expeditious Retreat's latest offering for world building, possible Unearthed Arcana, and the Expanded Psi-Handbook. So, I will check to see availability on all of those and see what I might want to order.