With sympathy to OP, I guess its hard to restrict comments using just a post title. Speculation is unavoidable.
My goal since joining MMM a while ago was as stated: FI by summer 2014.
Thanks to a great real estate deal that has just closed and the US market lately, I think (touch wood) can say im there in a mustashian definition: net worth over the mill and a paid house on top. No debt. No issues.
So, what's my "next goal"?
Well, for a start, I must challenge the restrictive nature of the question. FI should never be an all consuming goal. Life is waaaaay too complex for that. Hell, lets face it, you could die while reading this ( especially if you happen to be driving, fyi)
I think circumstance dominates in this stage. Are you healthy? In a loving relationship? Family? Safe? Nice location you really want to be at?
In my case, I really have an awesome job. I love it. It pays really well. It allows me lots of non working time, because I work >> 40hrs a week for a while, and then get to take that time back. I love most things about my life, and continuing to work right now has lots of other benefits and side benefits, family wise and future business wise.
So in the sense of your question, my next goal is setting up a nice RE opportunity in a few years. But as per MMM, I don't believe I will ever stop doing things occasionally that are both awesome fun and that ill get paid to do.
Im also starting to set up the transition from on paper FI net worth, to a sustainable portfolio to support long term FIRE. Its essential to include some kind of real estate rental a la MMM I think, and you should seriously worry about rock solid robustness to long term inflation combin3d with the possibility of a sustained bear market. This is not the same portfolio as when in accumulation mode.
So thats my next goal, in the sense of your question, to set up for a nice pleasant transition to RE, and keep ticking off the important stuff wrt happiness and contentment - relationships, children, parents, siblings, experiences, travel, friends, good food, health ( a biggy), etc etc
Meanwhile,