Most likely they were discontinued because they weren't a big seller. CT doesn't have any info on could find about a new version coming out. I would contact Crimson trace and see if they have any models with similar dimensions, you could then take your existing grips lay the over a larger laser grip and trave it like a stencil you could then cut it put with a dremil, or drilp/drill press, and cut some mounting holes.
That or try to find one that'll fit on the trigger guard.
Contact CT with this form,
crimsontrace.com/contactus/?form=ContactUs
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Crimson Trace · Phone
9780 SW Freeman Dr, Wilsonville, OR 97070
(800) 442-2406
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Wilsonville Oregon? That's just right up the road about an hour from me I knew sog optics was up that way, and Leopold but didn't know CT was there too.
Good luck on your hunt.
Also you can put a "looking to buy" add on tacswap and armslist.com

I would also try contacting Cajun gun works they make custom parts for CZs and do some really nice work, they probably wouldn't have a laser grip but could probably give ya some good ideas for alternative solutions
Phone
(318) 738-1464
Hours of Operation
Mon - Thurs: 9 AM - 4 PM
Fri: 9 AM - 3 PM
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https://cajungunworks.com/contact/