Chase has been fiddling with both their personal and business credit card lineup for a few years now, introducing both the personal Freedom Unlimited credit card, which earns 1.5 fixed-value Ultimate Rewards points on all purchases, and the small business Ink Business Preferred, which earns 3 flexible Ultimate Rewards points on "travel, shipping purchases, Internet, cable and phone services, and on advertising purchases made with social media sites and search engines."
The recent launch of an Ink small business version of the Freedom Unlimited means there's potentially an opportunity to use an Ink Business Unlimited card to rejigger your current lineup of Ultimate Rewards-earning credit cards.
I don't chase signup bonuses, but I know a lot of my readers do, so if you're eligible for an Ink Business Unlimited credit card, you might want to sign up for one just for its 50,000-point signup bonus after spending $3,000 within 3 months. Ultimate Rewards points are probably the most valuable single currency out there right now, so it's always worth at least considering applying for a signup bonus when a new Ultimate Rewards product is launched, as long as you're eligible.
However, not everyone is eligible for new Chase credit cards due to the "5/24 rule," but it should still be possible to get an Ink Business Unlimited card by requesting a product change from an existing Ink credit card.
Personally, I like the ability to earn plentiful Ultimate Rewards points buying Visa prepaid debit cards at Staples and (during promotions) Office Depot and OfficeMax, but if you have several Ink Bold, Ink Plus, or Ink Cash cards you're not maxing out at office supply stores, you might consider requesting a product change from one of those products to an Ink Business Unlimited.
Why? Because the 1.5 Ultimate Rewards points per dollar earned is unlimited, so you only need one of either the Freedom Unlimited or Ink Business Unlimited credit cards. If you're not using the bonus categories on an existing Ink card (even a no-annual-fee Ink Cash card), then switching to an Ink Business Unlimited might free up a personal Freedom Unlimited to be product changed to a valuable Freedom card offering 5 Ultimate Rewards points per dollar at quarterly rotating merchants, or even a Sapphire Preferred or Sapphire Reserve card if you're interested in the travel protection, bonus earning, or redemption uplift of those cards and aren't eligible to apply for them directly (due to 5/24 or simply having already earned the signup bonus too recently).
While not necessarily a reason to sign up in its own right, it's also true that Ink Plus and Ink Bold cardmembers can currently only refer friends and fellow business owners to the Ink Business Preferred, while I assume Ink Business Unlimited customers will eventually be able to generate links to Ink Business Unlimited applications (if they can't already).
So if you like earning referral bonuses but don't think the Ink Business Preferred is worth referring people to, you might want a card that can generate links to the no-annual-fee Ink Business Unlimited instead.
Many, if not most, long-time travel hackers are so far above Chase's 5/24 restriction that applying for new Chase credit cards isn't an option. But that's no excuse to ignore the launch of new credit cards, since additional cards open up new opportunities for product changes, and under almost no circumstances should you close a Chase credit card, given the difficulty you might have in opening additional ones in the future.