According to TicketMaster, tickets for the two Tweeter Center Boston / Great Woods shows go onsale at 12 NOON on Saturday March 23rd. $59.50 Reserved and $30.00 Lawn.
There will be a 4 ticket limit. Also in case you have not heard, the lawn area has been renovated and 7,000 uncovered upper reserve seats have been put in (see the seating chart).