Fumi Echizen's feed

Is it just me or the author is giving us some foreshadowing that Phinea and Radius will somehow end up together in the future? On Phinea's POV of masquerade ball, the two persons dancing there resembles her and Radius' adult features.

Note: they only have 7-9 years age gap and that foreshadowing could be on the timeline where Phinea already had her debut or already an adult (with marriageable age).