Well now they'll have to either invent a slipstream drive, or fess up that they have jump drive instead.
No doubt Hugo could offer to make some warp drive improvements. This would give him a closer look at the technology and he could claim he was trying to convert it to "Slipstream Warp" technology. This runs the risk of destroying the balance of power in this galaxy though if he does give one side technological improvements.
Also, why are the Gluteans
not assuming that Murphy and Co. don't also have their own transporters? Maybe because of the way Hugo acted when he was first trasported, or maybe because you can't transport warp drives, even if your shields are down?
So at the moment, we have one Gluteans
star ship; one Gluteans
freighter, with damage; one of the new guy's starship with a missing warp core and the Causa Sui.
Maybe Hugo could offer to modify the soon to be captured new guy's ship? That would give him insights on the other aliens too.