With Kante and Matić (or any new b2b midfielder) we have a perfect situation for 3 men midfield with both players providing defensive cover for Fabregas who will have a massive season this year, I can feel it something like Pirlo did under Conte with Pogba and Marchisio next to him ... Gomes seems like the best player to fit right in
If Conte thinks Matic, Chalobah or RLC are able to provide enough quality than I am ok with it, otherwise bring another midfielder like Naingollan, Gomes, Joak Mario or Gueye asap