Ministry of Land, Infrastructure and Transport which governs Haneda airport in Tokyo has announced on 02 September that they will increase the flights between Haneda airport and foreign airports. The foreign airports include the airports in Finland, Scandinavia(Denmark, Norway, and Sweden), Italy, Russia and Turkey.
Both foreign airlines and Japanese airlines can open new routes between these airports. Japanese carriers will be JAL or ANA. JAL will operate flights between Haneda and Helsinki, instead of current Narita - Helsinki. Flights to Helsinki is considered as the shortest connection between Japan and Europe, therefore JAL and Finnair can targeting more business travelers.
ANA will start their new flights to Scandinavia and Italy. Flights to Scandinavia will be either Copenhagen or Stockholm. Due to currently SAS, Scandinavian airlines is operating Narita - Copenhagen, I assume ANA will fly to Stockholm rather than to Copenhagen.ANA which belongs to same alliance, Star Alliance together with SAS can enjoy the code share flights between Stockholm and other European cities. Due to Stockholm is closer to Japan, it can be a rival of JAL flights to Helsinki.
Flights to Italy will be either to Rome or Milan by ANA and Alitalia. I assume ANA will choose Milan and Alitalia will choose Rome, not to compete each other. However, ANA will face a same problem with code share flights from Milan due to Alitalia is not Star Alliance, but Sky Team.
JAL and ANA both will operate flights to Russia. The destination should be Moscow but it can be Saint Petersburg, where Toyota has its factory. However, neither JAL nor ANA belong to Sky Team which Aeroflot belongs, therefore code share flights will be limited.
Finally, flights to Turkey will be definitely to Istanbul. Turkish airlines is also Star Alliance member therefore ANA can enjoy the code share flights between Istanbul and other cities mainly in Near East and northern Africa.