Well, it was not decided on thurs. It did tighten up. The top 4 guys are separated by 1 min 12 sec (5th-7th are ~4 mins back - the #1 rider is in 7th :0 ).
Today is the last day in the alps - they have a category 1 climb and then 2 above category climbs.
Saturday is the 'last' day and its a timetrial. If the #4 guy (C evans) does not loose much time on the climb today, he could effectively end up ahead on overall time after the time-trial bc he is quite a bit better time-trialer than the top 3 (who are mostly climbers). It looks like it could go down to the next to the last day.
Aside from all the crashes early, its been a good tour.