I wanted to test this and see how it goes so, I went ahead with it.
Before I proceed, I’ll like to remark that, the necessary precautions were taken for this experiment based on, the curiosity of the OP. I was driven to give it a try, ignoring the scenario as described but, just an attempt to see how it plays out.
I used the provided word list as provided
Although, I noticed a striking similarities between both as, the one link of wordlist provided by Silvercryptobullet:
https://github.com/bitcoin/bips/blob/master/bip-0039/bip-0039-wordlists.md both had the same sum of words which is 2048 in total.
The difference here as earlier noted was, in the number of languages each offered.
I even went as far as comparing the positioning of words and they were the same.
Okay, getting down to the experiment, I took precautions as, I can’t let out my seed phrase.
Precautions:
1. I had to see how to change my mobile device to some other language and return. Can’t get myself caught up in a language situation.
2. I proceeded to creating a new wallet with a new seed phrase.
3. I wrote down the seed phrase in there order. Ensuring to denote them top and bottom. The top was numbered in ascending order of arrangement while, the bottom was numbered according to there positioning on the word list.
4. I proceed to delete wallet and attempt importing using same seed but, with a different language.
Result:
It was a failed attempt. Not in the sense that the wallet didn’t open successfully as I didn’t get to that phase.
Now, most of the under listed languages hard there alphabets in English with a few exceptions which was Russia.
Korea and Chinese didn’t follow the regular keyboard format. It had this analog phone kind of display keys and I couldn’t proceed.
What was intended was to have the regular key placement and with the aid of a different device, find it’s placement and key in the words for result.
In conclusion, the experiment remained inconclusive…
With reference to the scenario in OP, there isn’t any need to translate should you know of such key. It’s the same key and it would perform its function just fine.