Well According to what CeVIO have mentioned me before, They are only interested to appeal to the Japanese market than the american one as of now, I so far the only update I heard of is the CVS to get an update (yay Yuudai update xD) But that's about it
In fact there was one. But we shouldn't talk about that anymore, and it's already out-of-date (it's for CeVIO 3.x). Anyway such a job is very time-wasting.
CeVIO is working on English UI now. If you open CeVIO 6 and your system locale is not Japanese, some texts are shown in English now, mixed with other Japanese texts.