If you are aiming for Puppet 4, you want to install puppetserver not puppetmaster, and puppet-agent not puppet. They deprecated puppetmaster in version 4.1, and started packaging all of the Puppet agent's dependencies in the same package as the agent (now called puppet-agent) with version 4. See Puppet 3.x to 4.x: Get Upgrade-Ready and New All-in-One puppet-agent Package respectively.
With that said, a look at the
/pool/jessie directories, on apt.puppetlabs.com, suggests that there are many packages built for Wheezy and not Jessie right now. Like,
puppetserver_2.1.1-1puppetlabs1_all.deb is only evident in
puppet-agent_1.2.4-1wheezy_amd64.deb. I don't see any
armhf packages anywhere on the site.
The sources for puppetserver for Wheezy are there (
*.dsc), and I bet you could build them into packages for Jessie, which you could put in your own
apt repository. But certainly it would be better for everyone if Puppet Labs built the packages.
You should ask them about it on
irc.freenode.net. It seems to me from lurking that people only really talk there during the day.