The first thought I get for MPC is that this would provide nearly 2000' of vertical which means some very massive and very awesome double black terrain. First and foremost would be to get an olympic skier such as say Bode Miller to come in, consult and design one or two double blacks. While straighline trails are... "OK", they have no personality, they have no ferociousness to them. Take something like Cupp Run or Shay's and magnify them to stand out at MPC as trails you revere, trails you respect, and trails that scare the piss out of even the most experts of experts.
With that said the same should be done with green's and blues. I'd almost say as trails are being designed on the mountain is that the single and double blacks would have their own portion of the mountain that would look down on the rest of Canaan Valley for miles around. But back to the green and blues, have long defining green runs longer than 2 miles that are wide open and groomed to perfection. Don't stop at 30-40 trails either, I encourage Bill Bright to create upwards of 100 trails (without logging the crap out of the mountain either).
The biggest concern for me as with everyone here I think is the fact that Reality sales stand to be the biggest threat to the perfect enviornment of any resort including MPC. One of the favorite reasons I like to goto Canaan and TL is the fact that it's the closest feeling I get to being in the backwoods of the Teton's riding down without another soul in sight. Dolly Sods and the Roaring Plains are perfect to have a resort snuggled up next to because quite frankly, I'm tired of places like Wisp where you ride a chairlift beside limitless condos.
Hrm... another thought would be to have two base lodge areas which are both designed to be Alpine towns. Going back to the Timberline thread, for goodness sake, PAVE the parking lot!!. It would be great if there was an Alpine village there at the Dry Fork entrance area, and then say at another entrance have another base lodge area. That would allievate congestion off of everyone funning right to one lift to ride to the top... again like Wisp. This would create some really great load balancing and along with designing trails/lifts to optimize amounts of skiers without congesting any one area. That alone would make MPC stand out as the greatest MA resort.
Create a wonderful night sking enviornment that covers 90% of the available terrain.
Create a dedicated area with 2-3 Terrain Parks including a massive super pipe. But don't stop there, one reason big resorts out west seem to be popular back here in the east is that all sorts of events are televised from them. Winter X-Games, and such. I don't know who or how, but it would be imperative for Bill Bright and management to entice racing events, terrain events of a regional wide nature to come here for multi-day competitions.
Thats what I'm thinking of at the moment... but there is more boiling in my mind of what could be done.
