At this point we have the reasonable expectation that we have a future 3B in Ruiz (though he's been terrible this year). There is a reasonable expectation that we could have a future 2B/CF in Peraza. Other than that, I don't think you can make a reasonable expectation for having a future everyday player. It's either due to A) upper levels being barron or B) prospects being too far to reasonable project them as everyday starters in the majors.