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On the other hand, as long as your domain name stays the same, you might be OK and show up during this next update. Then you'll need to keep an eye out for the 'bots at your new IP address to see if Google picks up your "new address" for the update after that.
The main problem you may have to deal with is that Google caches DNS, and may keep looking for you site at the old IP address for awhile.
The more incoming links you have from other high-ranked sites, and the fresher you keep your site content, the better this will go.
Best,
Jim