QUOTE (gmanjkd @ Jan 10 2013, 12:29 PM)
Would those old adventures like universal brotherhood, harlequin, DNA/doa be usable with 2050 source book?
Certainly, that'd make it easier. Conversion must still happen, of course, everything that has stats will need to be restatted. Some NPC builds may just not work anyway.
Personally, I found the first Horizon adventure unusable with SR4, simply because it assumes a naivity with commlinks no SR4 player in their right mind has. I did run ist as a post-64 SR3 adventure, which worked quite well. working up a few house rules and grinding trhough deck creation with Matrix for some commlink-like devices proved less tedious than forcing my players not to ditch their links once the adventure's main point happened. Never tried to run the others.
Artifacts doesn't depend on the wifi world much, but quality of the advantures is sometimes low, especially of New Dawn.
Ghost Cartels is a campaign that, like others (Brainscan, Shockwaves), will make any character used in it unplayable after it's conclusion, and that also has some dramaturgic problems. The other standalone adventures - On The Run (which ties into an old one, One Stage Before), the Boardroom Backstabs - are mediocre and rather badly balanced; On the Run's climatic fight will likely result in dead-or-worse PCs, it's just impossible to survive Damage Control, and Sacrificial Limb's ending basically needs to be entirely (re)written by the DM.
Jet Set, Twilight Horizon and Corporate Intrigue are more collections of notes that can be worked into adventures, and pretty random NPC stats that aren't all that helpful, and require at least as much preparation as adapting old school adventures. Some of the ideas are pretty neat, others are pretty ridiculous.
That said, you can of course convert old school adventures to SR4. You'll need to adapt the setting a bit and be prepared to deal with the WiFi world, as well as rewrite all stats, and generally do a lot of preparation, but most of them do not specifically demand any timeframe (story relevant campaigns like Bug City nonwithstanding). Some - especially old stuff like Ivy&Chrome, Mercurial, Double Exposure, Elven Fire or Imago - work better with SR4 than others.
The main SR4 Missions seasons, both New York and Seattle, are of good to outstanding quality with few exceptions and easily runnable in SR4, make good use of the setting and are varied, well written and easy to run. If you want to run canned adventures for SR4, do yourself a favor and start with Missions. Elven Blood, which technically also is a Missions product, also is highly recommended, and ties in with old adventures too, like Elven Fire.