That was my impression as well. Especially with new uniforms.
Pike is still wearing the same
thick-thin-thick pattern of cuff stripes that he was wearing in Disco, so definitely not the same as either The Cage or WNMHGB. The Disco pattern was basically a re-use of the JJ-Trek stripes that simplified the original TOS pattern of solid and broken stripes to thick and thin stripes, respectively. Number One wore o
ne thick + one thin in Disco S2, which would be Lieutenant Commander to Pike's Captain.
They had originally missed off the rank stripes completely from the
Enterprise uniforms at the start of Disco S2, to the extent that they actually added them in post-production CGI for those scenes already shot before the mistake was pointed out and physical insignia were added to the costumes.
So far, the only other cuff stripes we have seen in the trailers are either
two thick stripes (Hemmer, M'Benga, Chapel) and
one thick + one thin (Spock, Singh, Ortegas). Uhura is wearing the same cadet badge that Tilly first wore in Disco.
Yes, of course it's perfectly possible that they could have decided to change the pattern of cuff stripes but, based on the known precedent (and the lack of change to Pike's stripes), that would
imply Commander and Lieutenant Commander, even if that is not what they actually meant them to be.
Given the previous failure to include ranks at all on the original version of the current
Enterprise uniforms, who knows what they're intending but I wouldn't be at all surprised if some of these turn out to be incorrect.