Karen, I think you're thinking of 192 (as in US192), not 292. Yes, you can still take US27 south to US192 and head into the WDW that way. This route is free and the exit off the Turnpike only costs $1.25 versus $2.50 staying on the Turnpike plus another $1.00 if you take the new TOLL 429 or another $.50 if you exit onto I-4. The only problem with US27 is that there has been tremendous growth over the past few years in Clermont, south Lake County and northern Polk County. So there are now quite a few traffic lights and there can be a lot of traffic. But the route still works and it's not that bad.
The new TOLL 429 toll road actually goes past WDW and currently ends at US192, about 5 miles or so east of where US27 and US192 meet. One is free, the other costs money. The expressway route might save you 10-15 minutes and expressways are generally safer. But your route still works.
BobK/Orlando