Everyone here is going to agree. Those in charge haven't shown any sign of agreeing yet. Unless they expect to make some money with it it won't ever come. With public interest likely to be increased by the TV series (once it starts) I reckon there might perhaps be a chance for such a DvD, including some of the deleted scenes or the like.
One thing I'm sometimes wondering about is, what if all that happened. What if tomorrow we had a land before time movie with Ali returning, one with each character we ever hoped to return turning up again, and a DvD of the original movie with all the outcut scenes and everything we ever hoped for. What would we be hoping for next?