People keep asking if I'm back and I haven't really had an answer, but yeah, I'm thinking I'm back. - John Wick (2014 Thunder Road Pictures)
I'm not really sure how to tackle this one. On the one hand it makes perfect sense to stop producing a product that doesn't make money, and likely actually costs you money by taking away sales of new product. On the other hand, easy upgrades from ERR have been the mainstay for quite a while and folks on the tinkering end as well as those with smaller budgets have come to depend on them. I don't really have any useful thoughts on what big L should or should not do with their product line, I suppose.
What I do question, is what is the legal state for someone to produce a TMCC compatible product? It seems most of the conversation is over the cruise commander boards with barely a mention of the products that would actually be difficult to replace; the sound boards. In a previous post to this thread GGG mentioned that the R2LC (R4LC?) is still going to be available. If that is the case, there is nothing stopping anyone with a basic knowledge of component level electronics from producing a replacement TMCC cruise control board. The R2LC and track signal are the major obsolete component in the system, for which parts are hard to come by and redesigning would be foolish. The rest is just an H-bridge, a microprocessor, and a couple basic components.
Likely an over all better idea would be to do away with the R2LC and track signal all together, and instead offer a "bridge" product that plugs into a TMCC/legacy base and then rebroadcasts commands over Bluetooth or some other 2.4GHz system to a new receiver board in an engine. This would allow for in engine electronics produced as cheaply as LionChief electronics, using modern radio systems instead of the 50 year old system employed by TMCC.
So where I'm at is... Are R2LC boards going to be around still, and is Big L going to sue someone if they offer a board for sale that does the same job as a cruise commander? if the answers are yes and no, respectively, then there is no real problem for the boards most people are looking for.
The real loss here is in the sound systems, which are well beyond the skill of the average electronics hobbyist.
JGL