I could be wrong, but I think this was cut to serve a new pod in the 60's but was found to be beyond Glen Ellen's property lines and abandoned? This trail map from '68 shows "future facilities and trails":
http://www.nelsap.org/skihistory/glenellen68tm.jpg
I'd also be very interested to hear about proposed upgrades to ME.
No, you're right. That ownership did cut the liftline to that summit only to learn that they went beyond the property limit.
You'll also be interested to know that Roy Cohen made a serious bid to purchase MRG from Betsy Pratt after he acquired Glen Ellen. She turned him down, but he was going to revive that liftline and connect Ellen to MRG.