According to a report in the Evening Standard, Tottenham are currently considering plans that would require knocking down part of the current north stand at White Hart Lane before the end of next season.
The key concern driving this move by Spurs is that completing the new £400 million, 61,000 seat stadium in time for the 2018-19 season may be difficult to do if the work to demolish White Hart Lane cannot begin until the end of the 2016-17 season. Therefore, the club is now considering a plan that would demolish a portion of the north stand either before or during next season. Obviously one problem with this plan is that the club needs to ensure that season ticket holders do not lose their seats, so the team is currently exploring plans to accommodate any season ticket holders whose seats will be lost as part of the demolition.
This doesn't change anything with regards to the club's plans for the 2017-18 season, which are still up in the air. The two possible homes for Spurs during that campaign are still Stadium mk, home to the soon-to-be League One side MK Dons or the national stadium, Wembley, which the team may have to share with Chelsea. This new proposal will only concern what the club does with White Hart Lane next season during the club's final campaign at their long time home which was first built in 1889.