The one-two punch of Easter and Starbucks should push a big gain for the album, which sold 133,000 copies in the week ending April 13, according to Nielsen SoundScan.
The album's biggest week yet was logged the week ending March 23, when it scanned 202,000 copies. Its sales were bolstered that week by the home video release of the film on DVD and blu-ray.
If "Frozen" spends an 11th week at No. 1, it will become the longest-running No. 1 animated film soundtrack, surpassing the 10-week run of "The Lion King."
The new Billboard 200's top 10 will be revealed on Wednesday, April 23.
In other "Frozen" news: the karaoke version of the soundtrack -- as part of the Disney Karaoke series -- was released on April 15 as well. Sources say it could sell around 10,000 copies in the week ending April 20 -- an unusually high figure for a karaoke set. The last time a karaoke album sold more than 10,000 copies in a week was the week ending Dec. 22, 2013, when the "Tween Hits" set from the Party Tyme Karaoke series sold just over 10,000.
In non-"Frozen" action, the highest new entry on next week's Billboard 200 chart will likely come from August Alsina's debut album "Testimony," with around 50,000 to 60,000. Ingrid Michaelson's "Lights Out" might be the next largest bow, with around 45,000. Both albums seem set for a top 10 debut.