Certainly not fast travel, but I would like super supercruise when your damn target planet/base is over 100,000ls away.
I'd really like to be able to inter system jump between stars. It does get a little silly sometimes. The new USS's being somewhat worthwhile helps with this, and i'll say, it "seemed like" I was finding LOTS of rare and very rare materials etc, while on a VERY long travel in a system. Perhaps they actually made the likely hood of rare/very rare things turning up, scaled to how far you are from a body? Would make sense, and be a really cool idea.