I doubt they go to the same exact "beds" .... but, they might go to the same "bedding areas/banks". They pretty much follow a cycle thru the year, which would put them back in the same general area, each spawning season. Now, there may be times when the water level isn't conducive to spawning on that bank ... and if available/suitable cover isn't at the required depth on that bank, when the other conditions are right ... they may venture on to new habitats.
I say they don't go to the same "beds", since the males may not "make" those beds in the same place each year. OK - I'm splitting hairs, a little ... but, my point is - not all of last years males will be there, this Spring -- the cover they used, last year, may not be there -- the water level or conditions may not be right -- and the females may not be the same bunch as last year (minus those already caught, plus those just becoming mature enough to spawn). And, there's the well known fact that female Crappie do not drop all their eggs in one "bed" ... a survival instinct to create gene pool diversity, and to keep all their hatch from possibly being destroyed (should something happen to the male, or the bed).
But, the saving grace of all that is -- if the spot has suitable cover, water clarity, water temp, & stable water levels .... Crappie will come to it, even if it isn't the same general bunch that used it last Spring. ..........cp