What's to come of shrubby plant that died after short time? (3,6)

'what's to come' is the definition.
(both can mean the afterlife)

'shrubby plant that died after short time?' is the wordplay.
'shrubby plant' becomes 'hebe' (hebe is a type of shrub).
'that' becomes 'yon' (archaic term meaning 'that').
'died' becomes 'd' (abbreviation next to the year of someone's death).
'after' is a charade indicator (letters next to each other).
'short time?' becomes 't' (abbreviation; 'short' indicates a short form).
'hebe'+'yon'+'d'='hebeyond'
'hebeyond' after 't' is 'THE BEYOND'.

'of' acts as a link.