Well... I'm new here... so here comes
About Game and anime:
The Anime will do what the game do... for example: if in the game Subaru becomes with Misora, in the anime will be the same.
What they will do will be something like in Megaman Batle Network... they will do the final decision at the final game of serie...
Just because when the people stay curious, they will sell more games, and will get more money... so we will have much time to discuss this topic
The first game don't give lots of hints... at end of RnR1 Subaru still "neutral"...
But Luna and Misora surelly become in love for Subaru...
Using the "talks" of the game, I think taht both pairs have same chance of happen...
But using the "histosy" by what they have passed... I preffer Subaru x Misora, I think that will be the best pair...
War-Rock too looks like love Harp (this is strange, hehe)