This is a plan item for terminal work in the October iteration, in rough order of priority:

• Terminal leaks processes Terminal leaks processes #26807
• Trashcan button kills entire terminal process tree including non-console apps Trashcan button kills entire terminal process tree including non-console apps #35492
• Wrapped lines lead to wrong problems Wrapped lines lead to wrong problems #32042
• Scrolling via mousewheel in the terminal scrolls by a lot on Windows (about 12 lines) Scrolling via mousewheel in the terminal scrolls by a lot on Windows (~12 lines) #35111
• Terminals launched with invalid paths hang during creation and never emit onExit Terminals launched with invalid paths hang during creation and never emit onExit #31301
• Terminal doesn't handle PowerShell's space escape character correctly Terminal doesn't handle PowerShell's space escape character correctly #33584