Rise of Isengard has been out for a few weeks now so I thought I'd share my thoughts on it so far.
First, a bit of background. I've been playing Lord of the Rings Online since launch and I played regularly for the first couple of years. I moved to Sydney around the time I hit the original level cap of 50, and since most of my kinmates were also on the east coast it was easy for me to group up for end-game content. Around the time Siege of Mirkwood came out I moved back to Perth, which made the timezones more difficult. And a large chunk of the kin moved to a more raid-oriented kin, which didn't really interest me. So while I still played regularly, it was mostly solo.
Last year I was in the beta for Free to Play, and I tested a lot. I ran a few characters through the new introduction. I did every new solo quest in Enedwaith, as well as grinding out rep and deeds. It was a lot of fun, but by the time the content launched on live I didn't feel like doing it all again, so I pretty much just ran through the epic on my main. Since then, I've played intermittently, mainly on my alts. But I've decided to return to regular play with Rise of Isengard.