I think if you're sticking to the main paths you shouldn't have any trouble with bogs. There are plenty of options for getting back down to Edale.
Going over Brown Knoll and then down the Chapel Gate track is one option, that'll provide good views to the W and SW of the plateau. Or if you feel like a longer walk, you could extend this along Rushup Edge (instead of Chapel Gate) and head back down to Edale from the base of Mam Tor, you'd get good views of Hope Valley to the SE then.
Or you could circle round the other side of the Vale of Edale, past all the iconic rock formations (Noe Stool, Pym Chair, Woolpacks etc) and either descend relatively gently via Grindslow Knoll and Grindsbrook Booth into Edale - or, if you want something more rocky, come down Grindsbrook Clough. For me, at least, the latter is a more hands-on experience but I have short legs so I have recourse to my hands on bouldery ground more than longer-legged folk!
Really there are tons of options, depending on what parts of Kinder you want to see. I'm sure other members here have favourite routes too.