New Zealand Women's Sevens coach Sean Horan will also finalise his 2016 squad.
"As we saw in Dubai and Cape Town, our men's and women's teams are facing much tougher competition these days," Tew said.
"That's no surprise with a rugby gold medal up for grabs at the Olympics for first time since 1924. But it really shows how important it is that we have a strong domestic competition so we can keep building the depth and skills we need to continue to do well at the top level of the game.
"The good news is that the National Sevens, the regional qualifying tournaments and the Women's Super Series, are all providing a fantastic pathway for our players to show off their skills and press for higher honours."
Organisers of the National Sevens are hoping locals and visitors take advantage of the chance to see some of the best sevens players in the country in action.
"It's a fantastic opportunity for the Bay of Plenty and Rotorua community to get involved in an action packed weekend," Bay of Plenty Rugby chief executive Mike Rogers said.
"Providing great sevens talent, and a fantastic family day out with food and entertainment for the kids; it certainly adds to Rotorua's vibrancy over the holiday period not just for locals but visitors too."
Tickets are available on www.ticketmaster.co.nz. Prices include $15 adult, $5 child (under-15), and under-5s free.
Pools:
Men:
Pool A: Auckland, Northland, Bay of Plenty, South Canterbury.
Pool B: Hawke's Bay, Otago, Wellington, Taranaki.
Pool C: Counties Manukau, North Harbour, Wanganui, Mid Canterbury.
Pool D: Waikato, Manawatu, Tasman, Canterbury.
Women:
Pool 1: Counties Manukau, Waikato, Wellington, North Harbour, Otago.
Pool 2: Manawatu, Auckland, Wairarapa Bush, Canterbury, Tasman.