How long will a coin series last?

[TheCardinal]

Is there any way of finding our how long a certain series will continue on for? For example, how many years will the Perth mint silver and swans continue for?

 

[Tin Can]

It seems the W-T Eagle 1oz silver proof coin will not be produced in 2019, only the 2oz silver proof coin (first was in 2018).

 

[barsenault]

Swans were only supposed to go 3 years...but you know how greed works...it will go on longer than initially planned. Greed.