I just looked over the agenda for this year's RT Booklovers Convention and checked out the listings for the nightly parties. I've gone every year since 2011, and every year EC was one of party sponsors, giving away metric shit tonnes of goody bags and freebies; one year, for their rap/hip hop themed party, everybody got a tote bag with a t-shirt, Cavemen calendar, track pants, baseball cap, and other crap such as decks of cards, plastic beads, and some sort of light-up thingie that looks like a Hugo award (generic item you can buy online and have your logo slapped on free). There were also tables in the back with things like lip balm, lip gloss, banana-flavored condoms (srsly), candy, and a host of other things you can buy 500 for like $10.99 from Oriental Trading Company.
This year? Nothing.
All of the major parties are being sponsored by other publishers (in fact, the usual Harlequin Friday night bash is rolled over to the awards ceremony) (and Heather Graham's crew still has Saturday night. H'ray.) However, that's not to say they won't have a presence at the convention; their authors might be signing at the Giant Book Fair on Saturday and are listed by name on the site and in the program.