<p>There are a few things that MIGHT happen in December - Coca Cola, Intel STS - so I'm thinking it'd be better off to wait to submit my Common App to my RD schools until the end of December, though I'll probably submit supplements earlier. This shouldn't change anything, right? Are there advantages to submitting an application early?</p>
<p>Unless they have priority dates or rolling admissions, no. They wait until after the deadline to review your application for RD and you’ll get your decisions around the same time as everyone else for RD.</p>