The Norway international could be in contention to feature, despite not having trained since limping off with an ankle problem in the defeat to Crystal Palace on June 20.
Ritchie missed Sunday's FA Cup quarter-final defeat by Manchester City with a soft tissue injury and will be desperate to return against the Cherries, with whom he spent three and a half seasons earlier in his career.
Bruce otherwise has a clean bill of health with brothers Sean and Matty Longstaff having both played a part at the weekend following their respective returns from muscle injuries, while fellow midfielder Nabil Bentaleb is back after being suspended for the cup tie.
Bournemouth provisional squad: Ramsdale, Stacey, S. Cook, Ake, Smith, Brooks, Billing, L. Cook, Lerma, Stanislas, Solanke, Boruc, Rico, Kelly, Mepham, Gosling, Surman, H. Wilson, Danjuma, King, Surridge.
Newcastle provisional squad: Dubravka, Darlow, Yedlin, Rose, Krafth, Lazaro, Manquillo, Lascelles, Fernandez, Schar, Bentaleb, Hayden, Shelvey, S. Longstaff, M. Longstaff, Ritchie, Saint-Maximin, Allan, Almiron, Joelinton, Carroll, Gayle, Muto.