I know folks are lamenting the various teases we've seen over the years (like Luke's land speeder) but let's remember, it's not necessarily the company (HT or SCC) that has the final say as to what gets approved for production. ..it's the license holder. It's a fair bet that Disney is angling the product focus on what is more current, not to mention what they "created" for their property. Look at the plans for the parks...other than the MF, the focus on the themes, the "landscapes" will be on the new worlds and the "Resistance ", not the "Empire ". It's a rebranded galaxy, and Diz is gonna focus on that new brand.
Will we ever see a sixth scale Las landspeeder? Maybe someday.....but it's a safe bet it'll be more of the here-and-now first....
Rey's speeder looks cool...it'll be a nice display piece for that character from TFA.....but personally, I'm more partial to that other desert planet myself. For those who want, enjoy....