Mina will cost Everton £34million, Gomes joins on loan and Bernard moves on a free having left Shakhtar Donetsk.
The pair from Watford and Barcelona cost a combined £58m.
Brazil attacker Bernard has completed a medical at Goodison Park.
Mourinho was the man in charge at Stamford Bridge when Zouma was signed from St Etienne in 2014 but after a promising start to his career in west London the 23-year-old fell out-of-favour under Antonio Conte.
Accompanying him on Merseyside is set to be Manchester United target and Colombia star Mina.
Richarlison believes that Bernard will be a signing who improves Everton.
Russia Warns of Severe Consequences if Georgia Joins NATO
Medvedev said. "Do they understand the possible implications? It could provoke a awful conflict". Only Russia and a handful of countries recognise South Ossetia and Abkhazia as independent.
And their raid of the Nou Camp may potentially continue with Andre Gomes wanted too.
"He's very close, the medical was done yesterday and I expect an announcement to be confirmed later this morning".
Everton are attempting to finalise their move for Yerry Mina.
"It is one position and it is easy to understand how many we need in that position".
"Andre Gomes as well of Barcelona has been mentioned, I'm not sure that's one that's quite as near".
Everton fans were relatively pessimistic about the upcoming campaign before this week, but the potential capture of Gomes and a handful of other players on deadline day would certainly raise the spirits.