just heard the news...
can't help but feel a loss. although I'm sure at the end it'll probably turn out fine both for the band and Nelson.
the bass is such an important and distinctively unique part of NMA's music... right now first thing that comes to my mind is how my insides feel each and every time when I've heard live Nelson's bass coming in at the beginning of Brother.... blows me away.
and Nelson's bass playing accounts for 22 of the 30 years of NMA music, so this probably explains the feeling of loss...
all the best to Nelson and all his future endevours!!! such a great guy, down-to-earth and always calm!
and I'm sure we'll meet again!

I sincerely hope that this decision is not due to some health (or whatever) problems in his family...
Best luck with everything, Nelson! And thanx for each and every day of the last 22 years!