It had been expected that the Cherries would overhaul their squad as they prepare for life in the Championship, but Howe has quelled such claims.
He told the Daily Echo: "You just don't know what is going to happen in football.
"You can say you are close to finishing but you never know what is around the corner. I don't envisage too many more - maybe one, a maximum of two."
Bournemouth finished second in League One last season.