now a thought struck me - Ichigo being half quincy adds even more fuel to the idea that Royal Guards will be enemies for the end of this arc - If RG are "as hardcore as the yamamoto-led Divisions" were, they would have no qualms with the idea of eradicating every bit of quincy in the world - which would include both Ichigo and Ishdia.
Hell, if Ichigo really is a child of shinigami(Isshin) and quincy(Masaki), Royal Guard might view him as an abomination.
But at the same time, this makes Ichigo a perfect example of co-existence - a co-habitation of quincies and shinigami.
Betting on Ichigo-influenced third side in the war, vying for the end of this conflict, making Ichigo have to go against both VR and Royal Guard.