For me, I agree with Elveonora in that we should largely translate pages that should be translated to match what the English dub would read it as, or what would be commonly understood by the general user base that would read the wiki (sub or dub). Those pages which are written under Japanese but are non-translated (So things like Akatsuki, Ama no Hoko, Jinchuriki, Summoning Rashomon and Tenchi Bridge) should not be changed because these things are not translated in the English dub (ie, in both sub and dub, they are referred in the same way, thus translating them will only confuse everyone).
There is one notable exception, in the form of Daimyo. For most of the series, they are referred to as "Feudal Lords", but in one single episode during the original anime, the word "Daimyo" is used. Given that said usage was in the 80+ episode fillers, I don't think it would be a problem to translate this to "Feudal Lord" since they are referred that way all the time, although in the Japanese VA, the word "Daimyo" is always used.
There are various other instances of "Japanese" words being used once throughout the anime (eg the Seven Ninja Swordsmen tools), before always being referred to by their English TV translation, or words randomly being used in the non-translated form (eg Janin) in their associated arc.
When it comes to all those Rinnegan techniques used by Nagato/Paths of Pain, the articles are named using those names spoken by the Japanese VA's, but in English, they are directly translated (eg Almighty Push, Planetary Devastation etc). I would say those should be left on the basis that they are better written in the Japanese and are how they are spoken by the Japanese VA's (also because that is their Romaji translation afaik).
"Translations" (either romaji or English TV) should only be used where it is needed or where the "mythological" naming does not make sense (ie like in Tenpenchii's case, where it is just "Cataclysm" in the dub). Otherwise, things should be left generally as they are, since a lot of these articles are very established names in the wiki as a whole.
To use Elve's example, the Yin/Yang stuff is extremely strange because early on in the series, Yamato specifically refers to Yin and Yang chakra natures untranslated, but the first instance of them being translated to "Shadow and Light Styles" is not until very far into the series (when Konan gets killed by the fake Madara). I don't even recall if, after that point, they continue to be referred in this way, or by the older "Yin and Yang" naming convention. For the topic it is covering, Yin and Yang should be left that way because everyone understands that concept.
Tl;dr Unless there is a case for changing the names of many of the articles listed by Snapper, they should just be left as they are, on the basis of "these are the common names referred to the techniques/person/location" or "this is how they are spoken by Japanese VA's or English VA's".