What might have followed Britain's Canberra and Sea Vixen target drones

What aircraft might have replaced Britain's Canberra D10 and Sea Vixen D14 target drones?

A Tornado variant is a plausible guess for the period and flight profile, but the panel does not claim a documented choice.

The question asks what Britain might choose if it continued converting retired combat aircraft into target drones after the Canberra D10 and Sea Vixen D14. The panel has no confident documented answer. A Tornado variant is suggested because it belongs to the next relevant generation and can reproduce the needed performance profile. The answer remains deliberately tentative rather than presenting a plausible airframe as an actual procurement plan. The exchange marks the boundary between informed inference and evidence.