nope, thats been discussed on many-a-hw-fourum, its a misstype in the manuel, like the historical breif, it claims they 'replicated' the hyperspace core, which compleatly contradicts the hw2 storyline..
still, back to buisness...
no there will not be any hybrids,
and i think that the addition of these ships has been thought through thourouly by igiss and i trust him, (hes sorta my hero for this mod/server/everything)
TLR forums have specifics, it's not easy to work out what posts will attract attention.
For example, TLR has many modding forums but only one of them is actually active. Whatever modding question you have (even if there's a separate forum for it) it's better to post it in Editing General, because much more people will see it.
As for homeworld thread, most members just have nothing to add. Those who are interested are waiting for new releases; those who are not just don't care. As simple as that.
Proceeding further, about the ships. I haven't thought much about how to include them, Homeworld ships will just be included like all other ships. I don't want them for encounters; those who don't wish to see ships from other games have a right not to use it and not to see it. Huegenot is an exception, but it seems fun for me to have a Liberty Rogue cruiser that pops out sometimes and attracts lots of military and police ships trying to kill it. The only thing that might make inclusion of Homeworld ships more complicated is lack of ship selling locations, but I might add more.
I'm not intended to add everything from Mantaray's mod into Discovery. But most of the ships will probably be in. As for large ships (like Mothership) and stations from Homeworld, I might either add them as stations or not add them at all. For me, a Homeworld-like station seems a good place for selling Homeworld ships. But making a station requires additional hardpoints, that Mantaray should not forget.
Igiss is right on all points he deal with.
Including Sci-Fi games/series ships could interest alot of people but not all of this people is agree to see a big mess in the mod.
Moreover , like Igiss said , people who are interested by this thread had probably nothing to add (it's my case).
I'm very impatient to see this "add-on" released !
Good luck !