The only changes to packages we apply in Devuan 1.0 "Jessie" are to clean Debian from the systemd entanglement. Following versions ("Ascii" testing and "Ceres" unstable) will likely add more changes to the system, in the direction of independent maintenance and update of some packages. How much and in which directions Devuan will progress greatly depends from the growth of its developer community and the decisions taken within its governance process.
Developers are already welcome to involve themselves and update some packages that need in Ascii. Contributing an update does not implies "becoming a maintainer" of a package.