I'd love to see new special events come around, but honestly I was so disappointed over the way people acted out over Lightning. Both sides, not just the "OMG Stop bringing it back!!" crowd. From what I recall, the QQ was coming from every direction on that one, and just remembering that makes me wonder if SE will ever bother doing exclusive timed events again.

If they ever were to though, I'd be so excited that it wouldn't matter what they chose to do a crossover of. xD