this is nearly like the question about running and onground behavior...
Its not planned to give LBZ itself grondcontact, but the option to use nonflying mode instead for modmakers is not abandoned. but it will take time
BTW... new lbz engine will also provide very individual modsettings, it might be possible to make own games on this engine soon.
You could shorten the time till its possible by learning to make LBZ mods and make a bleach mod... and when lgs is far enough, you have allready done the bigger part of the work