Hi Anto!
I see your query has gone unanswered, so I'll give a try...
If the rim you have is sound, it is possible to rebuild the wheel using a new hub. You've mentioned the wheel is in need of a new hub anyway.
As for 11-sp rear hubs, Shimano's 105 looks to be a price leader.
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However, I think the problem you'll run into is in 11-speed drivetrain/shifter compatibility unless you run all 11-sp (complete groupset) or take great care in mixing 10/11-sp. The following links may prove helpful of you choose a mix or upgrade from 10 to 11:
http://velonews.competitor.com/2014/07/bikes-and-tech/technical-faq/technical-faq-1011-speed-compatibility_337803...and...
http://velonews.competitor.com/2013/09/bikes-and-tech/technical-faq/technical-faq-drivetrain-compatibility-for-10-and-11-speed_301392...and...
http://cyclingtips.com.au/2014/10/mixing-groupsets-what-works-together-and-what-doesnt/...and...
http://blog.performancebike.com/2013/10/25/our-take-10-speed-vs-11-speed/...for swapping an 11-sp wheel into an otherwise 10-sp drivetrain, see:
http://www.youtube.com/watch?v=rfv9auQ-_foDistilling the meat of the above-linked articles, it appears you can swap brands of 11-speed cogsets/wheels with only minor problems wrt to noise and shifting smoothness. You will have problems if you run Shimano 11-sp cassettes on Shimano 10-sp hubs (there is not enough room for them to fasten securely. It is possible to mill off the spline standoffs on the freehub body, but not recommended or endorsed). It seems to be possible with Campagnolo (11 on a 9/10 body). It appears you can run 10-sp cassettes on 11-sp hubs if you use a spacer behind the cassette.
It appears if you're already running 10-sp, you could upgrade to 11-sp with only a new rear mech, shifters, and chain required, though an 11-sp front mech might be a bit smoother.
If you're going from 9-sp stuff to 11, then you've got to swap more -- chainrings or chainset as well and the front mech upgrade becomes more necessary, and that gets complicated and spendy.
If you're starting fresh with a new frame and no components -- and really want 11-sp -- then it might well make sense to start with a new 11-sp groupset, which should include the rear hub, which you could then lace into your Mavic CXP 33 rim. At least you wouldn't have to buy another rim if this one is sound.
11-Sp is awfully spendy at present compared to 9/10sp, at least in rear hubs. Do you really want to go the 11-sp route? This might prove helpful in making a decision:
http://www.roadbikereview.com/reviews/do-we-really-need-11-speed For some folks, the answer is a resounding "yes". For others, "notsomuch".
12-sp and a change to 135mm OLN spacing on road bikes appear to be on the horizon.
What do you plan for shifters, Anto? How many chainrings? Compact setup?
Hope this helps,
Dan. (...who pines for a return to thicker 5-, 6-, or 7-sp cogsets and half-step + granny chainset gearing, which gave almost as many usable gears, fewer chainline issues, longer wear, and a much simpler shift sequence for all but genuine racing)