There are locations planned in the US (Silicon Valley, probably San Francisco) and in Europe (probably Luxembourg or Spain). Nothing for granted of course. But we know...buy the rumors;)
There is also the new Website of NEM coming up in July.
To set up a Full Node, you don't need any XEM. The harvesting with vested min. 10k XEM is taking place in your Wallet. The harvesting doesn't rely on running a node.