And the Replica who lives in the memory and subconscious of Silent "Player-On!" plans to trap his first enemy, with no way out as revenge in the new game.

His first enemy is Shadow the Hedgehog. Known as Shadow "Rely-On!"
in Sonic Forces: Afterwards Actualize "Different Dimension!"

Posting this one as a bonus, and that's the last WIP of the upcoming art.

In short and reminder: Yes, Silent "Player-On!" during Sonic Forces "Different Dimension" absorbed the force of Phantom Ruby as an invisible cube energy.
That was an secret ability and a last resort of Infinite, before he disappeared.
That caused a Replica of him to be created and stored in Silent's "Player-On!" Memory.
Thus, his full form will emerge and appear in Fierce Forces game.