Wow! In just a few days, a big change:
Overall odds, 1 in 6,250 chance
1 in 15,000 chance on April 13 2036
Number of encounters from 2034 to 2055, reduced to eight
Damn!! I had a hair appointment then!!!
Updated Set of Possible Positions of 2004 MN4 on April 13, 2029
Closeup View
Odds the same, but the number of encounters up to nine.
back up to 1 in 6,250 chance. Three close encounters (which I believe is down from four, but I didn't check), nine total encounters, dates follow.
http://neo.jpl.nasa.gov/risk/2004mn4.html
2035-04-14
2036-04-13
2037-04-13