As per this series of tweets by Ice Network, the Knierims will train with Aljona and her coaching team in Germany and she will come to the US with them as well:
https://twitter.com/icenetwork/status/996058279682899969
USFSA announcement: http://www.usfsa.org/story?id=91508&type=media
https://twitter.com/icenetwork/status/996058279682899969
USFSA announcement: http://www.usfsa.org/story?id=91508&type=media