The SoftBank Group’s subsidiary Z Holdings has announced that after completing a merger with the popular messaging app Line, it will invest $4.7 billion into the venture and hire 5,000 artificial intelligence engineers over the next five years. The merger of the two Japanese companies has been in the works since 2019, but was delayed by issues related to Covid-19. The main business areas of the company will be communication and social media, electronic and mobile commerce, along with online search and advertising. With the launch of their new services and collaborations with companies such as for online advertising, the joint establishment aims to generate $18.7 billion in revenue and $2 billion in operating profit in the fiscal year 2023.   Softbank Corp. and Naver Corp., the South Korean IT giant and major shareholder of Line, will each contribute 50 percent of capital required for the new intermediate holding…