Thank you, yes, sudo xl console kali is similiar to qvm-console-disvpm kali, however the kali template-VM keeps on powering down after a short period of time.
If I got a stable running VM and a terminal within I might be able to return to the last kali-snapshot or rolling back the removal of qubes-gui-agent. Otherwise I might just have to setup a new template as described by @unman: