Confirmed in this news story:
http://www.stltoday.com/news/local/govt-and-politics/missouri-s-gop-caucuses-are-coming-ready-or-not/article_b6ccc860-d87f-559a-8669-4c428af512a5.htmlThe caucus (held in most counties this coming Saturday, but one county already caucused last night) will just select delegates, and not involve any straw poll, so there'll be no real results to report this Saturday. It'll be like the Hawaii caucus in 2008:
So yeah, presumably we'll get some kind of reports of which campaigns were more successful in getting their delegates elected, but there are no real "results" to report. Just some names of delegates who may or may not have made any promises about which presidential candidate they're voting for.
Despite this, all of the candidates except Gingrich have had or will have a campaign event in Missouri this week, to rally the troops.