Intel in the last decade has made many changes in the naming of its processors. And apparently it still hasn't settled into something permanent since it's still changing the structure in their name, starting with the expected Meteor Lake.
Intel seems to like christenings, since every now and then something changes in the names of their processors. First, they discontinued the classic names Pentium and Celeron, what with them they grew up generations and generations. Now, the company drops the letter "i" from the name of its main processors and introduces a new series of Core chips.
Intel Replaces Classic 'Core i' Brand, which has been around since 2008, making it one of Intel's longest-running brands. From now on, Intel will simply call processors “Core” without the i. What you used to know as Core i3 will now be Core 3, Core i5 will become Core 5, Core i7 will become Core 7 and so on.
We'll know more about this new brand once the new chips, codenamed Meteor Lake, are released in a few months.