Whether there is news this week or not, do it beginning Monday. Start buying back into your ROTH on Thursday. If you have a lot of shares, don't start it Christmas week or the week after because the market will be too thin both ways. There may be softness the first weeks of the year, but that might also be when anticipation buying begins, anticipation of the IND related events, so you want to have it all done before then.
All in my opinion. I'm not a financial advisor, so I really don't know what I'm talking about.