Unique Mod Idea: would you play it?

[Quikngruvn]

I think this is a great idea! I think a big part of the strategy would be to determine how much of your fleet to go high-tech (which may work only occasionally) and how much for low-tech (which should work most of the time)....

Question, though: would there a circumstance arising where techs would become completely unavailable moving from a high-tech to a low-tech zone? I'm thinking specifically of ship construction, like if up to Battlecruisers are available, and I research and build Battelcruisers, and then suddenly only Destroyers are available, then what happens to my ships? Or is this a scenario that just wouldn't come up?

Quikngruvn