I reckon they'll line up something like this, not sure Fabregas will get a place in midfield. I think him and Hazard will battle it out for a spot behind the striker (assuming that Conte goes with a 352 anyway).
--------Courtois
------Cahill---Terry---Zouma
Cuadrado---------------------Azpi
------Willian---Matic---Kanté
------------Hazard/Fabregas
----------------Costa
Some serious running power in that team, if they can add in a starting CB they'll be very dangerous. No CL football will be a big bonus to their title aspirations too.