Welcome angerosa!
I moved your post over here since the On The Run Again forum is mainly for upcoming events.
To answer your question, yes there is a very high probability that she'll play it on this upcoming tour. She's played it on every tour since TBYML. You can see the set lists of most of her shows here:
http://pjharveyshows.thegardenforum.orgIf you click the Gigography Quick Reference link at the top it gives you all of them on a single page. You can then use control + F to pop up a search box and enter a word (like "down") to search through the list for all occurances of that word.
We'll know almost for sure after the 1st few shows in February. One thing that has become common for her lately is the exact same songs in the exact same order for many shows. She used to mix things up a bit, but not anymore. Being a perfectionist, she doesn't like to flub her own lyrics.
The recent warmup show in Polly's backyard in December apparently had them doing Meet Ze Monsta for an encore, but they actually finished the show with DBTW.
viewtopic.php?f=3&t=777&start=15