Congratulations on a job well done with fixing the night wakings!
Regarding the naps and extending them, do it if and when you feel you are up for it. Right now it seems like you are jsut thrilled to have your nights improved, so aren't all that anxious to change too much too fast.
But when you are ready, you may try tweaking her routine a bit with a little bit of a longer A time. Being almost 7months she might be able to handle 2.5 in the afternoon (2 in the am is good though).
You also might try reducing her winddown routine to just a couple of minutes. Usually with older babies a longer wind down routine is not always necessary and could back fire because they could actually be going through the first stages of sleep in your arms and will make it harder for them to transition to the next sleep cycle on their own.
HTH