I don't care for these ideas.
Here's what I want for shades, not much of a PB player.
Front loaded dwarf/human mire: a QoL bonus that dark melee got a long time ago, it would greatly aid their ability to handle solo targets without affecting their AoE prowess.
Harder hitting Siphon Life: Like above, this is a change ripped from dark melee. Essence Drain should get the siphon life treatment and also hit really hard. Right now it needs procs to be worth anything.
Tougher Pets: Warshade pets are actually really strong, but they run into melee and die so easily that you don't really get to get the most out of stolen-soul army.
Higher damage cap: It's really not great considering the mechanics of the AT.
Better DPA: A lot of warshade attacks are crap, but the few that are good have a bit of a speed issue. They're slow and do low DPA - a good solution being either to crank up the damage, or make them animate faster. Both are good, I favor responsiveness so I lean on quickness.