Sir Michael Stoute has engaged Newbury maiden winner Cape Dollar, while Ralph Beckett could run Princess Severus, who looked impressive when beating Wolf Slayer by two lengths at Leicester last month.
Channon added: "It will be a good race and certainly won't be easy but Sonning Rose is a smashing filly and everything is in place.
"She's got a bit of speed and I think she has done well for having a break so we will take it from there. Whatever she does, next year is very much the plan for her."