A development of the Fraser script was proposed by David Morse and Thomas Tehan in 2000, which would further romanize the script and enable Lisu to be used on the internet. It would also motivate non-literate Lisu to become literate in their own language, having already become familiar with the English alphabet in schools. They reported a desire among the Lisu people for a script which could be written in cursive style. Morse and Tehan recognize the importance of the Fraser script in the Lisu heritage, and emphasize that the advanced script is simply a further development of this script, rather than an attempt to supplant it with a new system.

They propose five stages of development; firstly, to replace the inverted letters with various other standard letters or combinations of letters, and subsequently to introduce a lower case, and a cursive style. The fourth stage involves organizing syllables into words and putting in word breaks, replacing Lisu punctuation with standard Latin punctuation, and introducing capitalization of proper nouns, first words in a sentence etc. In the final stage, the tone marking system would be revised so that postscript consonants are used to indicate tone.

The Advanced Lisu script is already used by some Lisu speakers, mainly for writing emails and creating web content, although it does not appear to be replacing the Fraser script.