Is there a reason to believe that Alexander would have chosen a city different from the one where previous kings were buried?
I don’t see any reason why he would have wanted another city at that point. That’s why I’d hope to see some link to this location. On the other hand, the sheer size of the tomb seems to point to someone with tremendous power and prestige.
Later on, after his Orientalization, he apparently decided on a final tomb somewhere in Egypt