They're getting more expensive to lease because their residual value is not nearly as high as leasing companies expected. They're about 20k because:

1. The local secondary market isn't really all the interested in ex-lease electric cars,

2. the usual sales channel of shipping ex-lease cars to Eastern Europe doesn't exist, there's barely a market for electric cars there.

So yeah, now's probably a good time to get a second hand electric car, but if you're leasing it's only going to get more expensive.