Eventually, of course. But it certainly depends on the particular people involved. If the sole administrator is doing a good job and is actively working to get more people involved, then why not? Better to have an experienced wikipedian assisting there than to abandon them.
He doesn't appear to be "actively working to get more people involved". Bombo is not a more experienced Wikipedian than Themalau or Moyogo, as far as I can tell, and as I already noted he can speak nearly no Lingala and seems to enjoy posting long articles entirely in French.
The point is, I see no reason for *us* to interfere. If the other users have a complaint, then that's a different matter.
So, I'm not important enough? How are other users different from me? I am a user on the Lingala Wikipedia, and frankly I'm a bit insulted by that remark.
I'm not thinking of them. I'm thinking of newcomers. Again, it seems fairly likely to me that there are fluent French speakers who are weak in Lingala who would be happy to come and help out. Having the dual interface for a little while seems more or less fine to me. When they want to fix it, I'm sure they will. Why are you bothered about it?
Who is this "they"? Three out of the four recently active users seem to not want it bilingual, but we don't have sysop capabilities. Bombo does.
And the same is true for many other languages -- English speakers wanting to help out on the Irish or Scottish Gaelic Wikipedias, German speakers wanting to help out on the Plattduutsch Wikipedia, French speakers wanting to help on the Breton Wikipedia, Spanish speakers wanting to help on the Basque Wikipedia... yet none of them has a bilingual user interface. Why?
Ok, well, I'm quite sure they'll do as they see fit. Trust them.
What about what I do, and what I see fit? As a Lingala Wikipedian, I don't understand why my opinion should count for less than any other user's.
Mark