I managed to attend, and I found the meeting surprisingly informative. The station will get a complete overhaul, including a new high-level inbound platform, safety cameras, emergency boxes, ADA-compliant elevators and ramps and new or renovated canopies.

As far as the main concern of this thread go--the preservation of Wayne Junction's buildings--SEPTA's primary goal now seems to be preservation and rehabilitation. Contrary to some reports, they're not looking to start demolishing. The plans are still only 60% complete, and I believe they said a full report on the historical aspects will be forthcoming, but they seem to be seriously trying to strike the best balance between preservation and alteration. Certainly some of the proposed elements may require alterations. But at the very least there appears to be a concerted effort to be as historically mindful as possible.

I think patio is more intimately involved behind the scenes; he may be able to provide more concrete details on the current plan.