how will it half development? you can still continue making models for the next versions of discovery. I dunno about you, but i think i'd like to play the final release of 4.85 now, instead of delaying it with further additions. and thanks to cannons auto updater, its not like each release will be years away like 4.84 and 4.85 have been.
that being said, this is a really good model which follows DA's method of making ships rather well (building on one model by adding parts to it), and for once i -really- like what you've managed to do with the vanilla model by adding on parts.
eppy's model is indeed an outcast bomber, not a replacement model for any of the current models ingame, and thus it has the distinct maltese cross and similar shape to the outcast gunship. instead of changing the falcata (which incidentally alot of people like), you could try to exchange the waran model. however, if you think about exchanging the waran model, that means you need to beef up the model some way or the other as it comes across as a light bomber so far, since the waran is a heavy bomber (after all, its a flying goat's head with guns).
EDIT: and yes, jinx answered your question rather well.