@Winston_Sung That is exactly what I found in Serbian and Croatian versions of Wikipedia. BTW, although Bosnian version uses "George Washington", I heard that Bosnian speakers also use Cyrillic alphabet, so I am not sure about the case in Bosnian (and Montenegrin). If an improved converter is applied, Cyrillic alphabets can be directly used in Serbo-Croatian Wikipedia, etc. In addition, the Serbo-Crotian Wikipedia is called "Wikipedija" at present, but the Cyrillic spelling is actually "Vikipedija" (there is no Cyrillic letter corresponding to "W"). Maybe this problem can be solved in recent time.

Some people above might misunderstand something. Here, for example, "George Washington" is just Croatian spelling (the Croatian variant does not require spelling of loanwords to be adapted to Croatian orthography), while "Džordž Vašington" is Serbian spelling.

As per my knowledge, Serbia, Bosnia & Herzegovina and Montenegro needs both Cyrillic and Latin scripts and Croatia needs only the Latin script. Hence, we need: Serbia-Latin, Serbia-Cyrillic (default for Serbia), B&H-Latin (default for B&H except Republika Srpska of B&H), B&H-Cyrillic (default for Republika Srpska of B&H), Montenegro-Latin (default for Montenegro), Montenegro-Cyrillic, Croatia-Latin (default for Croatia), and actually the proper default for Montenegro is not very certain as per my knowledge. Then, we may use something like localization of region-specific words in Chinese Wikipedia to deal with differences better.

A possible solution is to convert Latin script to Chinese characters word by word, not syllable by syllable, and not to convert uncommon proper nouns automatically (this transcription should be done manually). Similar methods can be implemented to Minnan, Mindong, etc.