I sent an inquiry a couple days ago to the SQEX e-STORE regarding international sales of NieR merchandise when it becomes available online, and I just heard back from them. This was their reply:

e-STOREで販売しているすべての商品は、日本国内向けのため国外への送付や、国外からの
ご購入はできません。また、ニーアグッズに関しましても現時点ではe-STOREのみでの販売を
予定しております。

Essentially, whatever items that become available in the e-STORE (from noon on April 22) are only valid to those within Japan. SQEX will *not* be conducting any international sales nor shipping internationally. T_T

I’m going to continue to cross my fingers for all the international fans that should these initial goods sell extremely well, SQEX will see how many people love this series that eventually anyone outside of Japan will get the chance to own some of these items!!