It could also have just been Eugimon's comment that Yamato will bounce from the M0 license to the M+ license. I think this is extremely highly likely. I don't think we'll see an SV-51 any time soon though, or a YF-21 for that matter. More likely we'll get the YF-19, then we'll get the VF-0 Shin, then we'll get the VF-19A, then we'll get the VF-0 CF (TV version), then we'll get something new... about this time next year, like an SV-51 and a YF-21...