The title says it all....
Probably LISK is underrated as well as other alts out there. LISK like the others have suffered a lot from the current hardforks of btc that got people's attention to divert to btc. After the hardfork train, probably we will see it rise somehow and the same can be said with other alts. As for it's future potential for growth, It still have potential left in it but the development is slow so it might get stable for a while.