First off I love the SE expansion toys, not so much the changes to skills.
The Britain map is fine, with a little loving detail it can be make very interesting yet it has a familiar home feel to it.
Personally I prefer "ADULT" with a splatter (yeah thats what I said!) of RP'n to make it fun. By adult I mean people over the age of 30 since the maturity level of the planet seems to have taken a 20 year regression.
PVP is so imballanced that it will never be fixed and it will never be to "everyones" taste so thats pretty much a waste of time for me. UO has 3 different methods of PVP already if thats not enough then somethings wrong to begin with.
I think PVP is a good thing if done properly, the problem is that most people have no clue what properly is. PVP to me is more roleplaying than just a method of your 12 year old to vent steam after a hard day in the showers with the 12th graders...*You got a pretty mouth!*
Attention to detail is what gets my attention the fastest, course I know Dian and Roan have plenty of that.
For the most part I think its the people you play with who makes the difference more than anything else. A good diverse player base makes for an interesting shard.
Dev