Wow, [Shining Ray - I don't know what to call you now, can I shorten you to Shine??
] you ARE on a crusade to reinstate senior forum status
well, I am on a crusade to avoid my reading work, so I shall reply...
Jupiter: expansion, learning, generosity, abundance, benevolence
Retro: experiences (more) internally, indirectly, introspectively
11H: social conscious, ideals, individual contribution to society, philanthropy
Leo: Leadership through self expression, courage, creativity
There is my brainstorming. Now to interpret....
I agree that Jupiter is more of a 'teacher' than a personal force. It doesn't belong directly to you in the way that mars or venus, etc, do.
I think you could learn, and benefit (jupiter) from your individual contribution to social causes (11H), in line with your ideals (both jupiter and 11H).
Okay, that's a non-specific reading, not taking into account anything that I know about you. It's a very broad idea. Basically I see that Jupiter's energy could be very easily expressed in the 11H through personal generosity according to your social ideals. Both 11H and Jupiter are idealistic, no?
Retro in leo is causing a bit of a mental crossed-wires for me. Both 11H and Leo are rather 'out there', socialised parts of a chart. Jupiter in leo (with 11H considered) might suggest something very boisterous with friends you meet through voluntary association (activism/political group/social group/volunteering etc) and with you taking somewhat of a "larger than life" leadership role. Somewhat of an ideological crusader
But I don't picture you quite like that. If you are to be an influential figure through social association, of any kind, my guess is that it's likely to be in a more self contained fashion. You may be inspired by ideals, yet not a soapbox grand-stander (as Jupiter in leo are apparently apt to be!!) because yours is retro.
Does the idea of learning, and expressing humanitarian values through (generously) donating your efforts in social associations sound like you? I love the eleventh house
Here is the best description of 11H I have ever read:
http://www.lightofisis.com/Astrology/houses11.htm
Oh, and what can your new nickname be? Or are you definitely Shining Ray, all the way