https://wccftech.com/whatsapp-for-ipad-is-a-possibility-and-wed-love-to-do-it-says-company-chief/

We already have iMessage on the iPad and it is more than helpful when the iPhone is charging or when you are working on the tablet. However, everyone does not use iMessage and some people use an Android phone. Henceforth, the need for WhatsApp on the iPad is dire and we wish the company realizes it soon. WhatsApp chief Will Cathcart states that WhatsApp on the iPad is a possibility and they would love to make it happen. Scroll down to read more details on the subject.

While the company chief did not mention any potential release frame, he did say that 'we'd love to do it' via (The Verge). WhatsApp is owned by Meta and the company does have plans to introduce a WhatsApp app for iPad soon. Cathcart states that "we did a lot of work on the technology for supporting multiple devices."