TMZ Sports photographed Hulk Hogan, in full Hulkamania gear, training at the WWE Performance Center. They reported that Hogan will re-debut with WWE on the February 24, 2014 episode of Monday Night Raw in Green Bay, Wisconsin. They also note he's scheduled to appear at Wrestlemania XXX in April. You can read their coverage at this link.
We reported here on WrestlingNewsWorld.com that Hogan was in fact back with WWE and the plan as of early this month was for him to guest host Wrestlemania XXX.