I'm predicting a bunch of tight pennant races, with some surprises. There's a lot more balance in baseball these days.
NL: Mets, Cardinals, Dodgers, with the Phillies as the Wild card.
AL: Red Sox, Tigers, A's, with the Twins or Indians as the Wild card.
Barry Bonds will break Aaron's career HR record, but there will be very little celebration. Especially if it happens on the road. Heck, in that case, he might even get booed off the field.