Similar to @Ryan_UMA, I think this proposal makes sense.
Lisk will require no new contract work, and OP Stack chains are the most well support framework in Across today. As an added advantage, adding Lisk will help “grease the wheels” to make it faster and easier for Across to onboard new, promising ecosystems like Lisk.
Across’s mission is to help get users where they want to go as quickly, seamlessly, and cheaply as possible. Users want to explore the Lisk ecosystem, so Across should make that journey as smooth as possible.