An 11spd shimano / sunrace mtb cassette will fit straight on as will a Shimano 11/34 11spd road cassette
50% right.
11-speed Shimano (and compatible) MTB cassettes have the same freehub width as 9 and 10 speed, and are interchangeable, so the OP should be fine with an 11-speed Shimano MTB cassette.
Shimano 11-speed road cassettes will not fit, however, as they require a fractionally wider freehub. Some freehubs can be filed down on the inside edge to accept the wider cassette, but many can’t. You can quite often source a new freehub for a not insane amount of money (e.g. £20-ish for Novatec), but I’m not sure what you’d be able to get for older Hope kit. An 11-speed Shimano road freehub is compatible with both 9 and 10 speed road cassettes, as well as all MTB cassettes up to and including 11 speed, by using a small spacer on the insider (spoke) end of the freehub, fitted before you slide the cassette on.