Please do not make the GalCiv2 Event:  SubSpaceTear a permanent element in GalCiv3.

I understand GalCiv2 developers may have been fascinated with that particular episode of Star Trek: The Next Generation: Season 7, Episode 9: “Force of Nature” which limited Warp travel to wrap 6. 
But in terms of enjoyment on a large+ map, you are just spawning hatred. 

If you do keep it, at least provide a counter research path.  Also would be nice to have something beyond hyperwarp & subspace field.   Yeah I made my own mods for GalCiv2 about this: The Borg call it Transwarp. 

Speak ill as you will.

Cheers,

TJ