The Wancho script has been accepted for encoding into a future version of the Unicode Standard. The script is in the  Pipeline at U+1E2C0..U+1E2FF.

A number of proposals for its inclusion have been submitted to the Unicode Technical Committee and WG2:

2017-01-23 Preliminary proposal to encode the Wancho script in the UCS — Michael Everson (WG2 N4785,  L2/17-042)

UTC #150 Minutes ( L2/17-016) (See C.11 for decision and action items)

2017-03-09 Proposal to encode the Wancho script in the UCS — Michael Everson (WG2 N4787, ( L2/17-067)

Recommendations to UTC #151 May 2017 on Script Proposals ( L2/17-153) (See point 9.)

UTC #151 Minutes ( L2/17-103) (See C.6 for decision and action items)

Recommendations to UTC #152 July-August 2017 on Script Proposals ( L2/17-255) (See point 13.)

UTC #152 Minutes ( L2/17-222) (See C.3 for decision and action items)