There will be CGs, just not now... They will work on the CGs after all the characters' routes are finished.
And there're definitely more builds for this game (the next build will be Kounosuke's route)
They said this game is a work of volunteer, so naturally it won't be updated frequently... Plus they also said they won't be releasing the next build of Santa Lucia until May because of their break, so my guess is that the next build of Homecoming will only come after that... Hopefully Kounosuke's route can be finished in the next build, and I won't have to check this page everyday after that, lol.