I was briefly looking to trade Scatterbug Eggs (yes, EGGS; that way they hatch with the new pattern from being bred in the other region, in your OT), but figured out that the difficulty of this is much higher than collecting the patterns themselves (the thread I created also received minimal activity), and can do that afterwards. So whenever I get a Scatterbug now, I keep them for later evolution out of curiosity. I did arrange trades for two Eggs that did hatch, however, and got some extra Eggs to trade for such purposes if I ever got the opportunity; most have been traded, but I think I still have a Garden Egg (mine is polar) I'll trade for another if the chance and need arises.
And yes, I will try to get the Elegant pattern. Everyone can get it regardless once it's released, from what I understand. Would be cool if they make it only for people who have traded even once.
As for trading: yes, I'm importing Pokémon from Black that I intend to use to spam the trade database. The Yancy Meowth from White 2 will be cloned and shared with a few people via WT, but I may provide it for other trades as well (if anyone owning a shop is interested in offering it, but doesn't have W2, or if I find someone wanting a Meowth and can surprise them with that Gen. V one at Lv.50). I also recently WTed some Charmeleon, plan to import a boatload of Zorua, and have decided to go back into Dream Radar and WT away some of my "research" from there once moved into X. So I'm definitely contributing and getting a few nice finds back myself. :)