Let's look at the goaltender contracts:
Price (31) - 8yr/$84M - 2018-2025 (38)
Lundqvist (36) - 7yr/$60M - 2014-2020 (38)
Bob (30) - 4yr/$30M - 2015-2018
Rinne (36) - 7yr/$49M - 2012-2018 (36)
Task (31) - 8yr/$56M - 2013-2020 (33)
Hellebuyck (25) - 6yr/$37M - 2018-2023 (30)
Holtby (29) - 5yr/$30M - 2015-2019 (30)
Schneider (32) - 7yr/$42M - 2015-2021 (35)
Crawford (34) - 6yr/$36M - 2014-2019 (35)
Varlamov (30) - 5yr/$30M - 2014-2018 (30)
Quick (32) - 10yr/$58M - 2013-2022 (36)
Jones (28) - 6yr/$35M - 2018-2023 (33)
M Smith (36) - 6yr/$34M - 2013-2018 (36)
MAF (34) - 4yr/$23M - 2015-2018 (34)
Luongo (39) - 12yr/$64M (last three $3.9M) - 2010-2021 (42)
Howard (34) - 6yr/$32M - 2013-2018 (34)
34-35 tends to be the common "terminal" age up to now, a couple deals were designed to lower AVV, Quick, Luongo.
$5-7M for most goalies, $8-9M for the top.
I think given so many goalies falling off before 35 (Price, Schenider, Crawford, Quick, M Smith), that teams will be wary of deals past 34 in the future.
I'd expect Varlamov to be offered something like 3yr/$20M or 4 yr/$24M.