N79969 is correct that the Japanese authorities do not grant ETOPS 180 or 207 'out-of-the-box.'
has a problem that it only one 773ER, so it really can't be used anywhere in its network outside of Asia. This spring it will take its second aircraft, so it will be interesting where those two will be placed. NRT
being the likely rumor.
773ER will also find its place on transpac or trans-Siberian flights as its aircraft are configured for three-class service but again delivery is at a very slow pace or both airlines.
A newly updated delivery list for the 777s shows more than 10 773ERs going to Emirates this year while Air France will take over 10 in less than a year. A stark contrast to Japanese carriers adding only two a year, but then again they aren't replacing or growing drastically at the moment.