There are no plans, public, secret, or otherwise to mix winched-launched and ALES-equipped sailplanes on the NATS flight line during any of the 2014 events. The schedule for the 2014 NATS may be found on the LSF web site,
IF the LSF ESAP is approved, it's my guess that some clubs may experiment with direct competition between "string-launched" and ALES equipped sailplanes. That may lead to some interesting results - and probably a lot of discussion.
This year, at the Southwest Classic in Arizona, both winched-launched and ALES-equipped sailplanes were launched from the same flight line but they were not competing directly with each other. The ALES ships had to launch in the same direction and continue on that course for a specified distance to ensure safety. To the best of my knowledge, there were no accidents or incidents. I was there for a day and didn't observe a significant difference in the launch heights achieved by either method. I timed for a couple of ALES pilots and they didn't feel that the directional requirements hampered their flying.