According to leaker Evan Blass, also known as evleaks, Guilin, Honjo, Saana, and Saimaa may be the codenames carried by four more Lumia devices that are in the works. Though there were no real details about the device, Blass does also reference the Cityman and Talkman, which specs have already leaked out.
Everyone's heard of Cityman and Talkman...but how about Guilin, Honjo, Saana, or Saimaa?— Evan Blass (@evleaks) June 20, 2015
In addition to referencing these other Windows Phone devices, Blass goes on to talk about Nokia tablets as well. He references the release of the Lumia 2520 (Sirius), and then goes on to reveal a few others that were apparently killed off.
Nokia only released a single tablet, the Lumia 2520 (Sirius)...but it killed off at least 4 more: Illusionist, Mercury, Pine, and Vega/Atlas— Evan Blass (@evleaks) June 20, 2015
Of course, all of these rumors are just that, rumors, until it is made official by Microsoft. Stay tuned for any additional information that may surface on these devices.