The source has reported that the bout could be pencilled in for May 26th in Osaka, although neither of those details seem likely given what we know of Taguchi and his affinity for Tokyo.
Whilst a May 26th date does seem relatively late for Taguchi's next bout, with the probablity being that he will be fighting in the Golden Week, there is a chance that either the bout could be staged in late April, to coincide with Japanese TV dates, or that the bout could be pushed to later in the year, for Taguchi's second defense of 2017. Although May does seem late it is still a possiblity for Taguchi's return.
For Taguchi the potential bout would mark his 6th defense of the WBA Light Flyweight title, and see him looking to extend a reign that began in late 2014. On paper it wouldn't look like his toughest defense to date but would potentially be an easy to make one and one that could could help him rebuild some confidence that could have been lost after his less than inspired performance at the end of 2016. As for Palangpol it would see him returning to Japan for the first time since a 7th round stoppahe loss to Koji Itagaki in 2011, in what was the Thai's debut, and it would also be his first world title bout.