Thanks, Card - the following paragraph from the article essentially answered my question:
"Some of those following this legislation have commented that this repeal may only be for 2018 Roth conversions, so in that case you would still have until October 15, 2018 to undo a 2017 Roth conversion. I don’t see it that way and wouldn’t risk taking that position with a client. The provision states that recharacterizations are repealed after this year, meaning that the recharacterization option no longer exists in 2018. Even if this is not perfectly clear yet, I still would not take a chance. Advisors should protect clients and assume that recharacterizations of 2017 Roth conversions will no longer be available after year-end."
I am concerned that waiting until the legislation is finalized/clarified will not afford sufficient time to convert in 2017.