Yea I've thought a lot about that i.e. what could the DRL do, and I'm not so sure to be honest ! The advantage of the King east / west market is too fold:
1) The space available to rent is very interesting / cool - this may sound silly to most, but is a huge factor for many small / medium firms (think old warehouse conversions).
2) Rent is cheaper then the core !
You wouldn't want to see 2) change, that'd drive away some of these tenants, but a DRL may do that. With all that said, thinking of any area like King East (or the portlands), here, where transportation is really bad, a DRL may be key in driving any demand.
Should be very interesting.
And the VCC node should be very interesting as well, very much akin to NYCC, will VCC hurt NYCC ? I think so, a little at least, we already know KMPG is likely going to move all their offices at Yonge / York Mills up to VCC.