Sounds like it was set up for the domestic segment to clear only if the international segment clears. That is how most choose to waitlist eVIPs, although the domestic segment can be confirmed right away since the inventory is available but then the eVIP will be used whether or not the more desirable international segment clears.
Are there still J and possibly also D seats available on your international flight that you have a chance of that upgrade clearing? If so, you might want to call reservations and let them confirm the domestic segment and hope your international segment gets upgraded so as not to burn an eVIP for domestic only. If your international segment does not clear before your originating domestic flight, you would have to forfeit the domestic upgrade if you are unwilling to gamble that your international flight will be upgraded later.
The waitlist clears by status so if you are not EXP and there are not several revenue business seats available, you may not get the international segment upgrade. I personally would not upgrade the domestic unless I had good reason to believe the international segment would clear-I'd rather save the eVIP to try to use on another international flight than upgrade only domestically with it. YMMV