RiD, BWII, BWNeo, and Japanese versions of the Unicron Trilogy are all highly unlikely.
For RiD, it's still in business limbo since the last ones to own it were Disney and Saban didn't buy it back, so Disney could still have it.
For BWII and BWNeo, the only reason Shout! Factory was able to release the subbed versions of the three JG1 series is because Metrodome had already done so several years ago. Thus, there were already existing subtitle scripts available for them to use. BWII and BWNeo have never received any full subtitle treatment all the way through, and thus have no subs readily available for Shout! to use.
The reason for these two having never been fully subbed is mostly because of how hard these two were to come by for many years. Neither was released on DVD until 14 years after each's original broadcast, leaving no high quality digital copies of the original masters available to use during those 14 years. The only things that were available (of you can call it that) during that period were VHS tapes of the shows that have since become long out of print and exceedingly hard to come by on the secondary market (you'd have better luck finding the Fountain of Youth before finding complete, good quality video sources for these two shows back then). But now that we have DVDs for both, that's one step in the right direction. But, the DVDs themselves are EXTREMELY expensive (being worth roughly $300 USD each).
Also, back when Metrodome was subbing the three JG1 cartoons, they were able to do so since the right to those three shows were included in a bundle with the G1 cartoon rights back when Metrodome got to do that series. Meanwhile, BWII and BWNeo were not made by the same company as the JG1 cartoons, so their rights belong to someone else entirely; someone whom Hasbro has never done business with.
And as for subbed versions of the Japanese Unicron Trilogy, this is unlikely since the subbed DVDs of the JG1 cartoons sold poorly and did not meet Shout! Factory's sales expectations. Subbed anime just doesn't sell well on the mainstreamm U.S. DVD market, thus it's mostly a niche appeal.