Interesting. According to this page of the Ministry of Economy, there will be indeed a tax cut for small, medium and big companies: https://www.chusho.meti.go.jp/zaimu/zeisei/syotokukakudai.html
The document above says that the increase of the paychecks of employees will be used to deduce taxes. Up until 35% or 45% depending on the size of the company, taxes will be cut in proportion of the raise given to employees.
But where will the money go? Thanks to the coronavirus now I know it may go into Bitcoin, gold, but also into Dodgecoin, foreign cars... At least it acknowledges long term inflation since the plan is until Reiwa 9 (2027 in Western calendar)