warspite1ORIGINAL: Orm
I suspect that Germany would only have based U-boats and a couple of commercial raiders there. And that the U-boats would soon have had access to secret bases on Japanese territory.
I also suspect that Germany would have traded their bases to Japan almost as soon as they entered war with CW in exchange for support for their U-boats. So when Japan goes to war with USA all the German territories would have been Japanese.
I think that what happened to the German Fleet in this area during WWI would affect on how Germany located their surface fleet prior to WWII.
But if supported by auxiliaries (as per real life) then what would be the difference between these ships running amok in the Western Pacific/Indian Ocean as opposed to the South Atlantic/Indian Ocean? - apart from a few thousand miles of course.