Bound to offer him one, infact I'd say it is 100% certain they will. Depends what we have offered him and whether he knows that by coming here, there is a strong possibility he will get his CL taster next year, if not this with Leicester.
I mean without sounding arrogant, even though they are champions, who is more likely to win it next year or be top 4, us or Leicester?
So take CL with Leicester now, maybe have a poorer season and the big clubs no longer retain much interest in him, or leave to Chelsea, and enjoy a potentially (and likely) more successful career on same money, or more