Obviously there is quite a bit of time remaining between now and CME open on Sunday. However, it is quite common to see a rotation towards the CME close when futures open on Sundays.
The CME close on Friday was 40640 so if price stays in this current range we could start seeing a rotation to the downside leading up to futures open on Sunday in order to fill the gap. That price point would be in line with the .236 retrace - and would also be ideal for a re-test of the smaller range we briefly saw on Friday.
Note: If price moves higher than 41970 the fib levels will change.