Spoke to family up there just today. Report I got is weather is a little screwie, so it has he fishing off a bit. Shawano Lake is producing perch right now. Winnebago has been a little slow for walleye, but there are still some being caught. Haven't heard much about Lake Poygan or Butte de More (sp) but they usually produce perch also this time of year. Try leaches just off the bottom for the perch. As far as bluegill. I hear the water temps are still down so they haven't really started bedding yet. Sounds like they are still in their winter pattern for now.
Of course, lot of this may not hold true for all bodies of water up there. WI has so many lakes it is hard to get a report for all of them.
If I hear any more reports from family or friends I will post that information.