A new connecting track to Metra main track 4? That's interesting. Looking at the current ROW on Google Earth, heading south from 111th St., track 4 currently ends at about 113th as you head into the interlocking, where it feeds into track 3, then eventually reduces to two tracks by the time you reach the Kensington depot. Also, CN/IC MT 1 (the westernmost main) closely parallels MED/NICTD MT2 through the depot area then curves slightly to the east before the ladder track hits it. Won't some, or all of this have to be reconfigured somewhat to make the second ladder track fit?
Also, thanks again JB, for the info and updates you provide, it's very kind of you to take time out to do this. Please do continue to keep us all informed on on the latest news on the new equipment and schedules. Thanks again!!