At this time of the year, there are often a lot of NHL trade rumors, and everything must be considered with a grain of salt. However, it wouldn't be surprising to see the Flames looking to offload players at the deadline, especially if they aren't in the playoff landscape.
Andersson and Kuzmenko will be free agents at the end of the season. If the Flames don't want to risk seeing them walk away for nothing during free agency and believe they won't reach an extension deal before the trade deadline, chances are they will both be traded.